diff --git a/src/assets/external-link.svg b/src/assets/external-link.svg
deleted file mode 100644
index c291d7e..0000000
--- a/src/assets/external-link.svg
+++ /dev/null
@@ -1 +0,0 @@
-<?xml version="1.0" ?><!DOCTYPE svg  PUBLIC '-//W3C//DTD SVG 1.1//EN'  'http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd'><svg enable-background="new 0 0 64 64"  width="20px" height="20px" version="1.1" viewBox="0 0 64 64" xml:space="preserve" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g id="Ebene_2"/><g id="Ebene_1"><g><path d="M48,27c-0.553,0-1,0.448-1,1v27H9V17h27c0.553,0,1-0.448,1-1s-0.447-1-1-1H8c-0.552,0-1,0.448-1,1v40c0,0.553,0.448,1,1,1    h40c0.553,0,1-0.447,1-1V28C49,27.448,48.553,27,48,27z"/><path d="M56,7H44c-0.553,0-1,0.448-1,1s0.447,1,1,1h10h1v1v10c0,0.552,0.447,1,1,1s1-0.448,1-1V8C57,7.448,56.553,7,56,7z"/><path d="M54,9c-0.256,0-0.512,0.098-0.707,0.293l-22,22c-0.391,0.391-0.391,1.023,0,1.414C31.488,32.902,31.744,33,32,33    s0.512-0.098,0.707-0.293l22-22C54.902,10.512,55,10.256,55,10s-0.098-0.512-0.293-0.707S54.256,9,54,9z"/></g></g></svg>
diff --git a/src/assets/loading.gif b/src/assets/loading.gif
deleted file mode 100644
index b36a2b6..0000000
Binary files a/src/assets/loading.gif and /dev/null differ
diff --git a/src/environments/environments/environment.beta.ts b/src/environments/environments/environment.beta.ts
deleted file mode 100644
index 1e5bcaa..0000000
--- a/src/environments/environments/environment.beta.ts
+++ /dev/null
@@ -1,23 +0,0 @@
-import {EnvProperties} from '../app/openaireLibrary/utils/properties/env-properties';
-
-export let properties: EnvProperties = {
-  environment: 'beta',
-  useCache: true,
-  useLongCache: true,
-  domain : "https://usagecounts.openaire.eu",
-  baseLink: "",
-  enablePiwikTrack: true,
-  piwikBaseUrl: "https://analytics.openaire.eu/piwik.php?idsite=",
-  piwikSiteId: "",
-  metricsAPIURL: 'https://beta.services.openaire.eu/usagestats/',
-  loginUrl: "https://beta.services.openaire.eu/admin-user-management/openid_connect_login",
-  userInfoUrl: "https://beta.services.openaire.eu/uoa-user-management/api/users/getUserInfo?accessToken=",
-  logoutUrl: "https://aai.openaire.eu/proxy/saml2/idp/SingleLogoutService.php?ReturnTo=",
-  cookieDomain: ".openaire.eu",
-  cacheUrl: "https://demo.openaire.eu/cache/get?url=",
-  adminToolsAPIURL: "https://beta.services.openaire.eu/uoa-admin-tools/",
-  reCaptchaSiteKey: "6LezhVIUAAAAAOb4nHDd87sckLhMXFDcHuKyS76P",
-  admins: ["feedback@openaire.eu"],
-  sushiliteURL: 'https://services.openaire.eu/usagestats/sushilite/',
-  footerGrantText: "OpenAIRE has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreements No. 777541 and 101017452"
-};
diff --git a/src/environments/environments/environment.prod.ts b/src/environments/environments/environment.prod.ts
deleted file mode 100644
index 96f0459..0000000
--- a/src/environments/environments/environment.prod.ts
+++ /dev/null
@@ -1,23 +0,0 @@
-import {EnvProperties} from '../app/openaireLibrary/utils/properties/env-properties';
-
-export let properties: EnvProperties = {
-  environment:"production",
-  useCache: true,
-  useLongCache: true,
-  domain : "https://usagecounts.openaire.eu",
-  baseLink: "",
-  enablePiwikTrack: true,
-  piwikBaseUrl: "https://analytics.openaire.eu/piwik.php?idsite=",
-  piwikSiteId: "374",
-  metricsAPIURL: "https://services.openaire.eu/usagestats/",
-  loginUrl:"https://services.openaire.eu/admin-user-management/openid_connect_login",
-  userInfoUrl: " https://services.openaire.eu/uoa-user-management/api/users/getUserInfo?accessToken=",
-  logoutUrl:"https://aai.openaire.eu/proxy/saml2/idp/SingleLogoutService.php?ReturnTo=",
-  cookieDomain:".openaire.eu",
-  cacheUrl:"https://explore.openaire.eu/cache/get?url=",
-  adminToolsAPIURL:"https://services.openaire.eu/uoa-admin-tools/",
-  reCaptchaSiteKey: "6LezhVIUAAAAAOb4nHDd87sckLhMXFDcHuKyS76P",
-  admins: ["feedback@openaire.eu"],
-  sushiliteURL: 'https://services.openaire.eu/usagestats/sushilite/',
-  footerGrantText: "OpenAIRE has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreements No. 777541 and 101017452"
-};
diff --git a/src/environments/environments/environment.ts b/src/environments/environments/environment.ts
deleted file mode 100644
index 721519c..0000000
--- a/src/environments/environments/environment.ts
+++ /dev/null
@@ -1,28 +0,0 @@
-// The file contents for the current environment will overwrite these during build.
-// The build system defaults to the dev environment which uses `environment.ts`, but if you do
-// `ng build --env=prod` then `environment.prod.ts` will be used instead.
-// The list of which env maps to which file can be found in `.angular-cli.json`.
-
-import {EnvProperties} from '../app/openaireLibrary/utils/properties/env-properties';
-
-export let properties: EnvProperties = {
-  environment: 'development',
-  useCache: false,
-  useLongCache: true,
-  domain : "https://usagecounts.openaire.eu",
-  baseLink: "",
-  enablePiwikTrack: false,
-  piwikBaseUrl: "https://analytics.openaire.eu/piwik.php?idsite=",
-  piwikSiteId: "",
-  metricsAPIURL: 'https://services.openaire.eu/usagestats/',
-  loginUrl: 'http://dl170.madgik.di.uoa.gr:8180/dnet-login/openid_connect_login',
-  userInfoUrl: 'http://dl170.madgik.di.uoa.gr:8180/dnet-openaire-users-1.0.0-SNAPSHOT/api/users/getUserInfo?accessToken=',
-  logoutUrl: 'https://aai.openaire.eu/proxy/saml2/idp/SingleLogoutService.php?ReturnTo=',
-  cookieDomain: '.di.uoa.gr',
-  cacheUrl: "https://demo.openaire.eu/cache/get?url=",
-  adminToolsAPIURL: 'http://duffy.di.uoa.gr:8080/uoa-admin-tools/',
-  reCaptchaSiteKey: '6LcVtFIUAAAAAB2ac6xYivHxYXKoUvYRPi-6_rLu',
-  admins: ['kostis30fylloy@gmail.com'],
-  sushiliteURL: 'http://scoobydoo.di.uoa.gr/static/sushilite/',
-  footerGrantText: "OpenAIRE has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreements No. 777541 and 101017452"
-};