https://creativecommons.org/publicdomain/mark/1.0/PDMCreative Commons Public Domain Mark 1.0falsefalse English Russian Титульный лист книги "Im Kaukasus. 1862."
deCreative Commons Attribution-Share Alike 3.0 detruetrue English German Gebirgsjäger im Kaukasus, September 1942 determination method or standard: SHA-1