@item
@url{https://www.gnu.org/philosophy/pragmatic.html, Copylefted}
@url{https://www.gnu.org/philosophy/free-sw.html, free software}:
@item
@url{https://www.gnu.org/philosophy/pragmatic.html, Copylefted}
@url{https://www.gnu.org/philosophy/free-sw.html, free software}: