Links
[1] https://www.ifross.org/?q=en/gnu-general-public-license-v20-wfont-exception
[2] https://www.ifross.org/?q=en/user/login&destination=comment/reply/1347%23comment-form
[3] https://www.ifross.org/?q=en/category/lizenzordnung/open-source-lizenzen/ii-lizenzen-strengem-copyleft-effekt/gplartige-lizenzen
[4] https://www.ifross.org/?q=en/category/tags/gpl-20-font-exception