In the BHL scans have been added of Martini & Chemnitz Systematisches Conchylien-Cabinet. This is one of the famous old malacological works of great importance to taxonomists. The URL is here: http://bit.ly/gmq0Rp.
One of caveats of old literature is that in several cases no publication dates are given, or not precisely enough. Fortunately, for many cases later authors have documented these dates on the basis of research on e.g. original wrappers.
For this publication there are two sources available. One related to the copy in G??ttingen: Welter-Schultes, F.W., 1999. Systematische Conchylien-Cabinet von Martini und Chemnitz (1837-1920), bibliography of the volumes in G??ttingen. – Archives of Natural History 26 (2): 157-203.
The other paper is by E.A. Smith and H.W. England, related to the copy in the London museum; this paper may be found online here: http://bit.ly/ij4iIB.