LICENSE.txt

VOSviewer 1.6.18 (https://www.vosviewer.com)

Copyright (c) 2009-2022 Nees Jan van Eck and Ludo Waltman

It is permitted, free of charge, to use and/or distribute this
software, provided that the above copyright notice and this permission
notice are retained. It is not permitted to modify this software.

======================================================================

VOSviewer uses the following libraries:
* Apache Commons CSV 1.6
  (https://github.com/apache/commons-csv)
* Apache OpenNLP 1.5.3
  (https://github.com/apache/opennlp)
* Azure Identity Client Library for Java 1.3.3
  (https://github.com/Azure/azure-sdk-for-java/tree/main/sdk/identity/azure-identity)
* Dropbox Core SDK for Java 4.0.0
  (https://github.com/dropbox/dropbox-sdk-java)
* FreeHEP VectorGraphics 2.3
  (https://github.com/freehep/freehep-vectorgraphics)
* Google Drive API Client Library for Java v3-rev110-1.23.0
  (https://github.com/googleapis/google-api-java-client-services/tree/master/clients/google-api-services-drive/v3)
* Google OAuth Client Library for Java 1.23.0
  (https://github.com/googleapis/google-oauth-java-client)
* JAI ImageIO Core 1.3.1
  (https://github.com/jai-imageio/jai-imageio-core)
* JBusyComponent 1.2.2
  (http://code.google.com/p/jbusycomponent)
* JSON in Java 20180813
  (https://github.com/stleary/JSON-java)
* juniversalchardet 2.0.0
  (https://github.com/albfernandez/juniversalchardet)
* Microsoft Graph SDK for Java 4.0.0
  (https://github.com/microsoftgraph/msgraph-sdk-java)
* networkanalysis 1.1.0
  (https://github.com/CWTSLeiden/networkanalysis)
* Radiance Substance 1.0.2
  (https://github.com/kirill-grouchnikov/radiance)
* Unirest for Java 1.4.9
  (https://github.com/Kong/unirest-java)
For copyright, license, and disclaimer information for each of these
libraries, we refer to the above listed web addresses.