to use @ref{Tarballs, tarballs} instead.
You can obtain it by cloning @url{http://git-scm.com/, Git}
-@url{http://git.cypherpunks.ru/cgit.cgi/govpn.git/log/, repository}
+@url{https://git.cypherpunks.ru/cgit.cgi/govpn.git/log/, repository}
and fetching dependent libraries source code as git submodules:
@verbatim