Taken from sources in CVS at:
    https://sourceforge.net/projects/rocketworkbench/

Sources extracted in two steps:
1. Pull entire project tree into a subdir "rwb" via "rsync":
    rsync -a a.cvs.sourceforge.net::cvsroot/rocketworkbench/ rwb/.
2. Export sources:
    export CVSROOT=$(pwd)/rwb
    SUBDIRS="analyser cpropep cpropep-web CVSROOT data libcompat libcpropep libnum libsimulation libthermo prop rocketworkbench rockflight"
    mkdir rwbx; cd rwbx
    cvs export -D now ${SUBDIRS}

After this (and some backups for safety), the directory content was
added to a Git repo:
    git init .
    git add *