1. Version Control System Comparison; http://betterscm.berlios.de/comparison/comparison.html#atomic_commits Version Control System Comparison; http://betterscm.berlios.de/comparison/comparison.html#atomic_commits
2. Original CVS Shell Script Code; mod-sources; http://groups.google.co.uk/group/mod.sources/msg/2ebab72ac0744fb8?hl=en&dmode=source Original CVS Shell Script Code; mod-sources; http://groups.google.co.uk/group/mod.sources/msg/2ebab72ac0744fb8?hl=en&dmode=source
3. Visual SourceSafe Roadmap; http://msdn.microsoft.com/enus/library/aa302175.aspx Visual SourceSafe Roadmap; http://msdn.microsoft.com/enus/library/aa302175.aspx
4. Contributions to Subversion; http://subversion.tigris.org/tools_contrib.html Contributions to Subversion; http://subversion.tigris.org/tools_contrib.html