diff --git a/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/hostedbymap/model/doaj/APC.java b/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/hostedbymap/model/doaj/APC.java
new file mode 100644
index 000000000..3473e0f9d
--- /dev/null
+++ b/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/hostedbymap/model/doaj/APC.java
@@ -0,0 +1,35 @@
+
+package eu.dnetlib.dhp.oa.graph.hostedbymap.model.doaj;
+
+import java.io.Serializable;
+import java.util.List;
+
+public class APC implements Serializable {
+	private Boolean has_apc;
+	private String url;
+	private List<Max> max;
+
+	public List<Max> getMax() {
+		return max;
+	}
+
+	public void setMax(List<Max> max) {
+		this.max = max;
+	}
+
+	public Boolean getHas_apc() {
+		return has_apc;
+	}
+
+	public void setHas_apc(Boolean has_apc) {
+		this.has_apc = has_apc;
+	}
+
+	public String getUrl() {
+		return url;
+	}
+
+	public void setUrl(String url) {
+		this.url = url;
+	}
+}
diff --git a/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/hostedbymap/model/doaj/Admin.java b/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/hostedbymap/model/doaj/Admin.java
new file mode 100644
index 000000000..b823e3450
--- /dev/null
+++ b/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/hostedbymap/model/doaj/Admin.java
@@ -0,0 +1,25 @@
+
+package eu.dnetlib.dhp.oa.graph.hostedbymap.model.doaj;
+
+import java.io.Serializable;
+
+public class Admin implements Serializable {
+	private Boolean ticked;
+	private Boolean seal;
+
+	public Boolean getTicked() {
+		return ticked;
+	}
+
+	public void setTicked(Boolean ticked) {
+		this.ticked = ticked;
+	}
+
+	public Boolean getSeal() {
+		return seal;
+	}
+
+	public void setSeal(Boolean seal) {
+		this.seal = seal;
+	}
+}
diff --git a/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/hostedbymap/model/doaj/Article.java b/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/hostedbymap/model/doaj/Article.java
new file mode 100644
index 000000000..7e90e24a2
--- /dev/null
+++ b/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/hostedbymap/model/doaj/Article.java
@@ -0,0 +1,44 @@
+
+package eu.dnetlib.dhp.oa.graph.hostedbymap.model.doaj;
+
+import java.io.Serializable;
+import java.util.List;
+
+public class Article implements Serializable {
+	private String license_display_example_url;
+	private List<String> license_display;
+	private Boolean orcid;
+	private Boolean i4oc_open_citations;
+
+	public String getLicense_display_example_url() {
+		return license_display_example_url;
+	}
+
+	public void setLicense_display_example_url(String license_display_example_url) {
+		this.license_display_example_url = license_display_example_url;
+	}
+
+	public List<String> getLicense_display() {
+		return license_display;
+	}
+
+	public void setLicense_display(List<String> license_display) {
+		this.license_display = license_display;
+	}
+
+	public Boolean getOrcid() {
+		return orcid;
+	}
+
+	public void setOrcid(Boolean orcid) {
+		this.orcid = orcid;
+	}
+
+	public Boolean getI4oc_open_citations() {
+		return i4oc_open_citations;
+	}
+
+	public void setI4oc_open_citations(Boolean i4oc_open_citations) {
+		this.i4oc_open_citations = i4oc_open_citations;
+	}
+}
diff --git a/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/hostedbymap/model/doaj/BibJson.java b/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/hostedbymap/model/doaj/BibJson.java
new file mode 100644
index 000000000..f7c0d501f
--- /dev/null
+++ b/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/hostedbymap/model/doaj/BibJson.java
@@ -0,0 +1,253 @@
+
+package eu.dnetlib.dhp.oa.graph.hostedbymap.model.doaj;
+
+import java.io.Serializable;
+import java.util.List;
+
+import com.fasterxml.jackson.annotation.JsonIgnore;
+
+public class BibJson implements Serializable {
+	private Editorial editorial;
+	private PidScheme pid_scheme;
+	private Copyright copyright;
+	private List<String> keywords;
+	private Plagiarism plagiarism;
+	private List<Subject> subject;
+	private String eissn;
+	private String pissn;
+	private List<String> language;
+	private String title;
+	private Article article;
+	private Institution institution;
+	private Preservation preservation;
+	private List<License> license;
+	private Ref ref;
+	private Integer oa_start;
+	private APC apc;
+	private OtherCharges other_charges;
+	private Integer publication_time_weeks;
+	private DepositPolicy deposit_policy;
+	private Publisher publisher;
+	private Boolean boai;
+	private Waiver waiver;
+	private String alternative_title;
+	private List<String> is_replaced_by;
+	private List<String> replaces;
+	private String discontinued_date;
+
+	public String getDiscontinued_date() {
+		return discontinued_date;
+	}
+
+	public void setDiscontinued_date(String discontinued_date) {
+		this.discontinued_date = discontinued_date;
+	}
+
+	public List<String> getReplaces() {
+		return replaces;
+	}
+
+	public void setReplaces(List<String> replaces) {
+		this.replaces = replaces;
+	}
+
+	public List<String> getIs_replaced_by() {
+		return is_replaced_by;
+	}
+
+	public void setIs_replaced_by(List<String> is_replaced_by) {
+		this.is_replaced_by = is_replaced_by;
+	}
+
+	public String getAlternative_title() {
+		return alternative_title;
+	}
+
+	public void setAlternative_title(String alternative_title) {
+		this.alternative_title = alternative_title;
+	}
+
+	public String getPissn() {
+		return pissn;
+	}
+
+	public void setPissn(String pissn) {
+		this.pissn = pissn;
+	}
+
+	public Editorial getEditorial() {
+		return editorial;
+	}
+
+	public void setEditorial(Editorial editorial) {
+		this.editorial = editorial;
+	}
+
+	public PidScheme getPid_scheme() {
+		return pid_scheme;
+	}
+
+	public void setPid_scheme(PidScheme pid_scheme) {
+		this.pid_scheme = pid_scheme;
+	}
+
+	public Copyright getCopyright() {
+		return copyright;
+	}
+
+	public void setCopyright(Copyright copyright) {
+		this.copyright = copyright;
+	}
+
+	public List<String> getKeywords() {
+		return keywords;
+	}
+
+	public void setKeywords(List<String> keywords) {
+		this.keywords = keywords;
+	}
+
+	public Plagiarism getPlagiarism() {
+		return plagiarism;
+	}
+
+	public void setPlagiarism(Plagiarism plagiarism) {
+		this.plagiarism = plagiarism;
+	}
+
+	public List<Subject> getSubject() {
+		return subject;
+	}
+
+	public void setSubject(List<Subject> subject) {
+		this.subject = subject;
+	}
+
+	public String getEissn() {
+		return eissn;
+	}
+
+	public void setEissn(String eissn) {
+		this.eissn = eissn;
+	}
+
+	public List<String> getLanguage() {
+		return language;
+	}
+
+	public void setLanguage(List<String> language) {
+		this.language = language;
+	}
+
+	public String getTitle() {
+		return title;
+	}
+
+	public void setTitle(String title) {
+		this.title = title;
+	}
+
+	public Article getArticle() {
+		return article;
+	}
+
+	public void setArticle(Article article) {
+		this.article = article;
+	}
+
+	public Institution getInstitution() {
+		return institution;
+	}
+
+	public void setInstitution(Institution institution) {
+		this.institution = institution;
+	}
+
+	public Preservation getPreservation() {
+		return preservation;
+	}
+
+	public void setPreservation(Preservation preservation) {
+		this.preservation = preservation;
+	}
+
+	public List<License> getLicense() {
+		return license;
+	}
+
+	public void setLicense(List<License> license) {
+		this.license = license;
+	}
+
+	public Ref getRef() {
+		return ref;
+	}
+
+	public void setRef(Ref ref) {
+		this.ref = ref;
+	}
+
+	public Integer getOa_start() {
+		return oa_start;
+	}
+
+	public void setOa_start(Integer oa_start) {
+		this.oa_start = oa_start;
+	}
+
+	public APC getApc() {
+		return apc;
+	}
+
+	public void setApc(APC apc) {
+		this.apc = apc;
+	}
+
+	public OtherCharges getOther_charges() {
+		return other_charges;
+	}
+
+	public void setOther_charges(OtherCharges other_charges) {
+		this.other_charges = other_charges;
+	}
+
+	public Integer getPublication_time_weeks() {
+		return publication_time_weeks;
+	}
+
+	public void setPublication_time_weeks(Integer publication_time_weeks) {
+		this.publication_time_weeks = publication_time_weeks;
+	}
+
+	public DepositPolicy getDeposit_policy() {
+		return deposit_policy;
+	}
+
+	public void setDeposit_policy(DepositPolicy deposit_policy) {
+		this.deposit_policy = deposit_policy;
+	}
+
+	public Publisher getPublisher() {
+		return publisher;
+	}
+
+	public void setPublisher(Publisher publisher) {
+		this.publisher = publisher;
+	}
+
+	public Boolean getBoai() {
+		return boai;
+	}
+
+	public void setBoai(Boolean boai) {
+		this.boai = boai;
+	}
+
+	public Waiver getWaiver() {
+		return waiver;
+	}
+
+	public void setWaiver(Waiver waiver) {
+		this.waiver = waiver;
+	}
+}
diff --git a/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/hostedbymap/model/doaj/Copyright.java b/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/hostedbymap/model/doaj/Copyright.java
new file mode 100644
index 000000000..c595c4c88
--- /dev/null
+++ b/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/hostedbymap/model/doaj/Copyright.java
@@ -0,0 +1,25 @@
+
+package eu.dnetlib.dhp.oa.graph.hostedbymap.model.doaj;
+
+import java.io.Serializable;
+
+public class Copyright implements Serializable {
+	private Boolean author_retains;
+	private String url;
+
+	public Boolean getAuthor_retains() {
+		return author_retains;
+	}
+
+	public void setAuthor_retains(Boolean author_retains) {
+		this.author_retains = author_retains;
+	}
+
+	public String getUrl() {
+		return url;
+	}
+
+	public void setUrl(String url) {
+		this.url = url;
+	}
+}
diff --git a/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/hostedbymap/model/doaj/DOAJEntry.java b/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/hostedbymap/model/doaj/DOAJEntry.java
new file mode 100644
index 000000000..add5bf8bf
--- /dev/null
+++ b/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/hostedbymap/model/doaj/DOAJEntry.java
@@ -0,0 +1,52 @@
+
+package eu.dnetlib.dhp.oa.graph.hostedbymap.model.doaj;
+
+import java.io.Serializable;
+
+public class DOAJEntry implements Serializable {
+	private String last_updated;
+	private BibJson bibjson;
+	private Admin admin;
+	private String created_date;
+	private String id;
+
+	public String getLast_updated() {
+		return last_updated;
+	}
+
+	public void setLast_updated(String last_updated) {
+		this.last_updated = last_updated;
+	}
+
+	public BibJson getBibjson() {
+		return bibjson;
+	}
+
+	public void setBibjson(BibJson bibjson) {
+		this.bibjson = bibjson;
+	}
+
+	public Admin getAdmin() {
+		return admin;
+	}
+
+	public void setAdmin(Admin admin) {
+		this.admin = admin;
+	}
+
+	public String getCreated_date() {
+		return created_date;
+	}
+
+	public void setCreated_date(String created_date) {
+		this.created_date = created_date;
+	}
+
+	public String getId() {
+		return id;
+	}
+
+	public void setId(String id) {
+		this.id = id;
+	}
+}
diff --git a/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/hostedbymap/model/doaj/DepositPolicy.java b/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/hostedbymap/model/doaj/DepositPolicy.java
new file mode 100644
index 000000000..d86c97f34
--- /dev/null
+++ b/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/hostedbymap/model/doaj/DepositPolicy.java
@@ -0,0 +1,35 @@
+
+package eu.dnetlib.dhp.oa.graph.hostedbymap.model.doaj;
+
+import java.io.Serializable;
+import java.util.List;
+
+public class DepositPolicy implements Serializable {
+	private List<String> service;
+	private String url;
+	private Boolean has_policy;
+
+	public List<String> getService() {
+		return service;
+	}
+
+	public void setService(List<String> service) {
+		this.service = service;
+	}
+
+	public String getUrl() {
+		return url;
+	}
+
+	public void setUrl(String url) {
+		this.url = url;
+	}
+
+	public Boolean getHas_policy() {
+		return has_policy;
+	}
+
+	public void setHas_policy(Boolean has_policy) {
+		this.has_policy = has_policy;
+	}
+}
diff --git a/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/hostedbymap/model/doaj/Editorial.java b/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/hostedbymap/model/doaj/Editorial.java
new file mode 100644
index 000000000..35bfba158
--- /dev/null
+++ b/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/hostedbymap/model/doaj/Editorial.java
@@ -0,0 +1,35 @@
+
+package eu.dnetlib.dhp.oa.graph.hostedbymap.model.doaj;
+
+import java.io.Serializable;
+import java.util.List;
+
+public class Editorial implements Serializable {
+	private List<String> review_process;
+	private String review_url;
+	private String board_url;
+
+	public List<String> getReview_process() {
+		return review_process;
+	}
+
+	public void setReview_process(List<String> review_process) {
+		this.review_process = review_process;
+	}
+
+	public String getReview_url() {
+		return review_url;
+	}
+
+	public void setReview_url(String review_url) {
+		this.review_url = review_url;
+	}
+
+	public String getBoard_url() {
+		return board_url;
+	}
+
+	public void setBoard_url(String board_url) {
+		this.board_url = board_url;
+	}
+}
diff --git a/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/hostedbymap/model/doaj/Institution.java b/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/hostedbymap/model/doaj/Institution.java
new file mode 100644
index 000000000..3b4d90493
--- /dev/null
+++ b/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/hostedbymap/model/doaj/Institution.java
@@ -0,0 +1,25 @@
+
+package eu.dnetlib.dhp.oa.graph.hostedbymap.model.doaj;
+
+import java.io.Serializable;
+
+public class Institution implements Serializable {
+	private String country;
+	private String name;
+
+	public String getCountry() {
+		return country;
+	}
+
+	public void setCountry(String country) {
+		this.country = country;
+	}
+
+	public String getName() {
+		return name;
+	}
+
+	public void setName(String name) {
+		this.name = name;
+	}
+}
diff --git a/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/hostedbymap/model/doaj/License.java b/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/hostedbymap/model/doaj/License.java
new file mode 100644
index 000000000..64c7bc18f
--- /dev/null
+++ b/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/hostedbymap/model/doaj/License.java
@@ -0,0 +1,67 @@
+
+package eu.dnetlib.dhp.oa.graph.hostedbymap.model.doaj;
+
+import java.io.Serializable;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+
+public class License implements Serializable {
+	private Boolean nc;
+	private Boolean nd;
+	private Boolean by;
+	private String type;
+	private Boolean sa;
+	private String url;
+
+	public Boolean getnC() {
+		return nc;
+	}
+
+	@JsonProperty("NC")
+	public void setnC(Boolean NC) {
+		this.nc = NC;
+	}
+
+	public String getType() {
+		return type;
+	}
+
+	public void setType(String type) {
+		this.type = type;
+	}
+
+	public Boolean getNd() {
+		return nd;
+	}
+
+	@JsonProperty("ND")
+	public void setNd(Boolean nd) {
+		this.nd = nd;
+	}
+
+	public Boolean getBy() {
+		return by;
+	}
+
+	@JsonProperty("BY")
+	public void setBy(Boolean by) {
+		this.by = by;
+	}
+
+	public Boolean getSa() {
+		return sa;
+	}
+
+	@JsonProperty("SA")
+	public void setSa(Boolean sa) {
+		this.sa = sa;
+	}
+
+	public String getUrl() {
+		return url;
+	}
+
+	public void setUrl(String url) {
+		this.url = url;
+	}
+}
diff --git a/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/hostedbymap/model/doaj/Max.java b/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/hostedbymap/model/doaj/Max.java
new file mode 100644
index 000000000..0e292b631
--- /dev/null
+++ b/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/hostedbymap/model/doaj/Max.java
@@ -0,0 +1,25 @@
+
+package eu.dnetlib.dhp.oa.graph.hostedbymap.model.doaj;
+
+import java.io.Serializable;
+
+public class Max implements Serializable {
+	private Integer price;
+	private String currency;
+
+	public Integer getPrice() {
+		return price;
+	}
+
+	public void setPrice(Integer price) {
+		this.price = price;
+	}
+
+	public String getCurrency() {
+		return currency;
+	}
+
+	public void setCurrency(String currency) {
+		this.currency = currency;
+	}
+}
diff --git a/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/hostedbymap/model/doaj/OtherCharges.java b/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/hostedbymap/model/doaj/OtherCharges.java
new file mode 100644
index 000000000..1583481d2
--- /dev/null
+++ b/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/hostedbymap/model/doaj/OtherCharges.java
@@ -0,0 +1,25 @@
+
+package eu.dnetlib.dhp.oa.graph.hostedbymap.model.doaj;
+
+import java.io.Serializable;
+
+public class OtherCharges implements Serializable {
+	private Boolean has_other_charges;
+	private String url;
+
+	public String getUrl() {
+		return url;
+	}
+
+	public void setUrl(String url) {
+		this.url = url;
+	}
+
+	public Boolean getHas_other_charges() {
+		return has_other_charges;
+	}
+
+	public void setHas_other_charges(Boolean has_other_charges) {
+		this.has_other_charges = has_other_charges;
+	}
+}
diff --git a/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/hostedbymap/model/doaj/PidScheme.java b/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/hostedbymap/model/doaj/PidScheme.java
new file mode 100644
index 000000000..bd7e710dd
--- /dev/null
+++ b/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/hostedbymap/model/doaj/PidScheme.java
@@ -0,0 +1,26 @@
+
+package eu.dnetlib.dhp.oa.graph.hostedbymap.model.doaj;
+
+import java.io.Serializable;
+import java.util.List;
+
+public class PidScheme implements Serializable {
+	private List<String> scheme;
+	private Boolean has_pid_scheme;
+
+	public List<String> getScheme() {
+		return scheme;
+	}
+
+	public void setScheme(List<String> scheme) {
+		this.scheme = scheme;
+	}
+
+	public Boolean getHas_pid_scheme() {
+		return has_pid_scheme;
+	}
+
+	public void setHas_pid_scheme(Boolean has_pid_scheme) {
+		this.has_pid_scheme = has_pid_scheme;
+	}
+}
diff --git a/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/hostedbymap/model/doaj/Plagiarism.java b/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/hostedbymap/model/doaj/Plagiarism.java
new file mode 100644
index 000000000..f2230b3ea
--- /dev/null
+++ b/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/hostedbymap/model/doaj/Plagiarism.java
@@ -0,0 +1,27 @@
+
+package eu.dnetlib.dhp.oa.graph.hostedbymap.model.doaj;
+
+import java.io.Serializable;
+
+import javax.sql.rowset.serial.SerialArray;
+
+public class Plagiarism implements Serializable {
+	private Boolean detection;
+	private String url;
+
+	public Boolean getDetection() {
+		return detection;
+	}
+
+	public void setDetection(Boolean detection) {
+		this.detection = detection;
+	}
+
+	public String getUrl() {
+		return url;
+	}
+
+	public void setUrl(String url) {
+		this.url = url;
+	}
+}
diff --git a/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/hostedbymap/model/doaj/Preservation.java b/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/hostedbymap/model/doaj/Preservation.java
new file mode 100644
index 000000000..f56ea9953
--- /dev/null
+++ b/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/hostedbymap/model/doaj/Preservation.java
@@ -0,0 +1,44 @@
+
+package eu.dnetlib.dhp.oa.graph.hostedbymap.model.doaj;
+
+import java.io.Serializable;
+import java.util.List;
+
+public class Preservation implements Serializable {
+	private Boolean has_preservation;
+	private List<String> service;
+	private List<String> national_library;
+	private String url;
+
+	public String getUrl() {
+		return url;
+	}
+
+	public void setUrl(String url) {
+		this.url = url;
+	}
+
+	public Boolean getHas_preservation() {
+		return has_preservation;
+	}
+
+	public void setHas_preservation(Boolean has_preservation) {
+		this.has_preservation = has_preservation;
+	}
+
+	public List<String> getService() {
+		return service;
+	}
+
+	public void setService(List<String> service) {
+		this.service = service;
+	}
+
+	public List<String> getNational_library() {
+		return national_library;
+	}
+
+	public void setNational_library(List<String> national_library) {
+		this.national_library = national_library;
+	}
+}
diff --git a/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/hostedbymap/model/doaj/Publisher.java b/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/hostedbymap/model/doaj/Publisher.java
new file mode 100644
index 000000000..6d97a7969
--- /dev/null
+++ b/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/hostedbymap/model/doaj/Publisher.java
@@ -0,0 +1,25 @@
+
+package eu.dnetlib.dhp.oa.graph.hostedbymap.model.doaj;
+
+import java.io.Serializable;
+
+public class Publisher implements Serializable {
+	private String country;
+	private String name;
+
+	public String getCountry() {
+		return country;
+	}
+
+	public void setCountry(String country) {
+		this.country = country;
+	}
+
+	public String getName() {
+		return name;
+	}
+
+	public void setName(String name) {
+		this.name = name;
+	}
+}
diff --git a/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/hostedbymap/model/doaj/Ref.java b/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/hostedbymap/model/doaj/Ref.java
new file mode 100644
index 000000000..0f7c7dc95
--- /dev/null
+++ b/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/hostedbymap/model/doaj/Ref.java
@@ -0,0 +1,52 @@
+
+package eu.dnetlib.dhp.oa.graph.hostedbymap.model.doaj;
+
+import java.io.Serializable;
+
+public class Ref implements Serializable {
+	private String aims_scope;
+	private String journal;
+	private String oa_statement;
+	private String author_instructions;
+	private String license_terms;
+
+	public String getAims_scope() {
+		return aims_scope;
+	}
+
+	public void setAims_scope(String aims_scope) {
+		this.aims_scope = aims_scope;
+	}
+
+	public String getJournal() {
+		return journal;
+	}
+
+	public void setJournal(String journal) {
+		this.journal = journal;
+	}
+
+	public String getOa_statement() {
+		return oa_statement;
+	}
+
+	public void setOa_statement(String oa_statement) {
+		this.oa_statement = oa_statement;
+	}
+
+	public String getAuthor_instructions() {
+		return author_instructions;
+	}
+
+	public void setAuthor_instructions(String author_instructions) {
+		this.author_instructions = author_instructions;
+	}
+
+	public String getLicense_terms() {
+		return license_terms;
+	}
+
+	public void setLicense_terms(String license_terms) {
+		this.license_terms = license_terms;
+	}
+}
diff --git a/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/hostedbymap/model/doaj/Subject.java b/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/hostedbymap/model/doaj/Subject.java
new file mode 100644
index 000000000..811638e76
--- /dev/null
+++ b/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/hostedbymap/model/doaj/Subject.java
@@ -0,0 +1,34 @@
+
+package eu.dnetlib.dhp.oa.graph.hostedbymap.model.doaj;
+
+import java.io.Serializable;
+
+public class Subject implements Serializable {
+	private String code;
+	private String scheme;
+	private String term;
+
+	public String getCode() {
+		return code;
+	}
+
+	public void setCode(String code) {
+		this.code = code;
+	}
+
+	public String getScheme() {
+		return scheme;
+	}
+
+	public void setScheme(String scheme) {
+		this.scheme = scheme;
+	}
+
+	public String getTerm() {
+		return term;
+	}
+
+	public void setTerm(String term) {
+		this.term = term;
+	}
+}
diff --git a/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/hostedbymap/model/doaj/Waiver.java b/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/hostedbymap/model/doaj/Waiver.java
new file mode 100644
index 000000000..ca67dde0c
--- /dev/null
+++ b/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/hostedbymap/model/doaj/Waiver.java
@@ -0,0 +1,25 @@
+
+package eu.dnetlib.dhp.oa.graph.hostedbymap.model.doaj;
+
+import java.io.Serializable;
+
+public class Waiver implements Serializable {
+	private Boolean has_waiver;
+	private String url;
+
+	public String getUrl() {
+		return url;
+	}
+
+	public void setUrl(String url) {
+		this.url = url;
+	}
+
+	public Boolean getHas_waiver() {
+		return has_waiver;
+	}
+
+	public void setHas_waiver(Boolean has_waiver) {
+		this.has_waiver = has_waiver;
+	}
+}