Links
[1] https://ifross.org/?q=xfree86-license-11
[2] https://ifross.org/?q=user/login&destination=comment/reply/1367%23comment-form
[3] https://ifross.org/?q=category/lizenzordnung/open-source-lizenzen/i-lizenzen-ohne-copyleft-effekt/bsdartige-lizenzen
[4] https://ifross.org/?q=category/tags/xfree86-11