Comment 8 for bug 1779764

The issue is that the software is licensed as GPLv3, and the GPLv3 does not permit this notice: https://www.gnu.org/licenses/gpl-faq.en.html#RequireCitation

The Debian maintainers reviewed the citation notice as implemented in parallel and viewed it to be in violation of GPLv3, and patched it out, renaming from “GNU parallel” to “parallel”. Arch Linux and OpenSUSE have also patched out the citation notice. Summary of other distros stance here: https://github.com/NixOS/nixpkgs/issues/110584#issuecomment-766158970.

> I have yet to come across a journal, that restricts citations to 50:
Nature restricts to 30, or up to 50 (https://www.nature.com/nature/for-authors/initial-submission). I haven’t looked at the submission guidelines for all the others but expect similar restrictions.