https://pm20.zbw.eu/category/geo/i/141259
In total 27 folders, 196 documents - folders incomplete. For material not published as folders, please check the digitized micro-films (in German).
For direct access to the documents, click the “(xy documents)” link, for folder information use the “(folder)” link.
For intellectual property law reasons accessible only from the European Union legal area and from the ZBW reading room.
Total number of images: 518
For intellectual property law reasons accessible only from ZBW reading room.
Total number of images: 440