Students of the University of Göttingen can download the software ArcGIS Desktop here for free. However, access to the download is only possible via GÖNET (IP addresses 134.76. *. *):
ArcGIS Desktop 10.5.1, English
ArcGIS Desktop 10.6.1, English
ArcGIS Desktop 10.7.1, English
ArcGIS Desktop 10.7 tutorial, English
ArcGIS Desktop 10.8 tutorial, English
To install the software you will need an authorization code. You will receive this code from the GWDG support@gwdg.de.