Analysis of information sources in references of the Wikipedia article "Список пакетів GNU" in Ukrainian language version.
The ancestry-line of the GNU Pipo BBS reaches over YAWK ("Yet Another Wersion of Citadel") back to Citadel, although it is completely independent code-wise. In fact it was a disagreement with Kenneth Haglund, author of YAWK, because of copyright-problems that triggered the development of the GNU Pipo BBS. The original development-team were Grégory Vandenbrouck and Sébastien Aperghis-Tramoni who worked on the GNU Pipo BBS with help from volunteers like Sébastien Bonnefoy.
