Issue No. 01 - January/February (2006 vol. 23)
DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/MS.2006.32
Panagiotis Louridas , Greek Research and Technology Network
Although CVS (Concurrent Versions System) is the oldest, it's still the mostly widely used version control system because it's mature, stable, and fielded in a vast corpus of projects. CVS is the standard for comparison among all other VC tools.
P. Louridas, "Version Control," in IEEE Software, vol. 23, no. , pp. 104-107, 2006.