diff --git a/docs/apis/search-api/research-products.md b/docs/apis/search-api/research-products.md
index 832cfe6..c2d7e17 100644
--- a/docs/apis/search-api/research-products.md
+++ b/docs/apis/search-api/research-products.md
@@ -27,7 +27,7 @@ Endpoint: https://api.openaire.eu/search/researchProducts
| funder | WT \| EC \| ARC \| ANDS \| NSF \| FCT \| NHMRC | Search for entities by funder. |
| fundingStream | ... | Search for entities by funding stream. |
| FP7scientificArea | ... | Search for FP7 entities by scientific area. |
-| keywords | White-space separated list of keywords. | N/A |
+| keywords | White-space separated list of keywords. | This parameter is used to support a keyword search functionality in various fields (e.g., for research products the keywords are used to search in the product’s title, description, authors, etc). Regarding the semantics, when you provide multiple keywords, all keywords should be present, hence the correct interpretation is `kwd1 AND kw2`. |
| doi | Comma separated list of DOIs.
Alternatively, it is possible to repeat the parameter for each requested doi. | Gets the research products with the given DOIs, if any. |
| orcid | Comma separated list of ORCID iDs of authors.
Alternatively, it is possible to repeat the parameter for each author ORCID iD. | Gets the research products linked to the given ORCID iD of an author, if any. |
| fromDateAccepted | Date formatted as `YYYY-MM-DD` | Gets the research products whose date of acceptance is greater than or equal the given date. |
diff --git a/versioned_docs/version-7.1.3/apis/search-api/research-products.md b/versioned_docs/version-7.1.3/apis/search-api/research-products.md
index 832cfe6..c2d7e17 100644
--- a/versioned_docs/version-7.1.3/apis/search-api/research-products.md
+++ b/versioned_docs/version-7.1.3/apis/search-api/research-products.md
@@ -27,7 +27,7 @@ Endpoint: https://api.openaire.eu/search/researchProducts
| funder | WT \| EC \| ARC \| ANDS \| NSF \| FCT \| NHMRC | Search for entities by funder. |
| fundingStream | ... | Search for entities by funding stream. |
| FP7scientificArea | ... | Search for FP7 entities by scientific area. |
-| keywords | White-space separated list of keywords. | N/A |
+| keywords | White-space separated list of keywords. | This parameter is used to support a keyword search functionality in various fields (e.g., for research products the keywords are used to search in the product’s title, description, authors, etc). Regarding the semantics, when you provide multiple keywords, all keywords should be present, hence the correct interpretation is `kwd1 AND kw2`. |
| doi | Comma separated list of DOIs.
Alternatively, it is possible to repeat the parameter for each requested doi. | Gets the research products with the given DOIs, if any. |
| orcid | Comma separated list of ORCID iDs of authors.
Alternatively, it is possible to repeat the parameter for each author ORCID iD. | Gets the research products linked to the given ORCID iD of an author, if any. |
| fromDateAccepted | Date formatted as `YYYY-MM-DD` | Gets the research products whose date of acceptance is greater than or equal the given date. |
diff --git a/versioned_docs/version-7.1.3/graph-production-workflow/aggregation/aggregation.md b/versioned_docs/version-7.1.3/graph-production-workflow/aggregation/aggregation.md
index a140cf6..3903d7f 100644
--- a/versioned_docs/version-7.1.3/graph-production-workflow/aggregation/aggregation.md
+++ b/versioned_docs/version-7.1.3/graph-production-workflow/aggregation/aggregation.md
@@ -10,7 +10,7 @@ OpenAIRE materializes an open, participatory research graph (the OpenAIRE Graph)
OpenAIRE aggregates metadata records describing objects of the research life-cycle from content providers compliant to the [OpenAIRE guidelines](https://guidelines.openaire.eu/) and from entity registries (i.e. data sources offering authoritative lists of entities, like [OpenDOAR](https://v2.sherpa.ac.uk/opendoar/), [re3data](https://www.re3data.org/), [DOAJ](https://doaj.org/), and various funder databases). After collection, metadata are transformed according to the OpenAIRE internal metadata model, which is used to generate the final OpenAIRE Graph, accessible from the [OpenAIRE EXPLORE portal](https://explore.openaire.eu) and the [APIs](https://graph.openaire.eu/develop/).
-The transformation process includes the application of cleaning functions whose goal is to ensure that values are harmonised according to a common format (e.g. dates as YYYY-MM-dd) and, whenever applicable, to a common controlled vocabulary. The controlled vocabularies used for cleansing are accessible at [api.openaire.eu/vocabularies](https://api.openaire.eu/vocabularies/). Each vocabulary features a set of controlled terms, each with one code, one label, and a set of synonyms. If a synonym is found as field value, the value is updated with the corresponding term.
+The transformation process includes the application of cleaning functions whose goal is to ensure that values are harmonised according to a common format (e.g. dates as YYYY-MM-dd) and, whenever applicable, to a common controlled vocabulary. The controlled vocabularies used for cleansing are accessible at [api.openaire.eu/vocabularies](https://api.openaire.eu/vocabularies/). Each vocabulary features a set of controlled terms, each with one code, one label, and a set of synonyms. If a synonym is found as field value, the value is updated with the corresponding term.
In addition, the OpenAIRE Graph is extended with other relevant scholarly communication sources that need special handling, either because they do not strictly follow the OpenAIRE Guidelines or due to the vast amount of data of data they offer; these include Crossref, ORCID, Microsoft Academic Graph, Unpaywall).