Links
[1] https://ifross.org/?q=en/zope-public-license-20
[2] https://ifross.org/?q=en/user/login&destination=comment/reply/1370%23comment-form
[3] https://ifross.org/?q=en/category/lizenzordnung/open-source-lizenzen/i-lizenzen-ohne-copyleft-effekt/bsdartige-lizenzen
[4] https://ifross.org/?q=en/category/tags/zpl-20