Links
[1] https://www.ifross.org/?q=physnet-package-license
[2] https://www.ifross.org/?q=user/login&destination=comment/reply/565%23comment-form
[3] https://www.ifross.org/?q=category/lizenzordnung/open-source-lizenzen/iv-lizenzen-wahlmoeglichkeiten
[4] https://www.ifross.org/?q=category/tags/physnet-package-license