TY  - JOUR
A1  - Humboldt, Alexander von
T1  - On the difference of level between the Black Sea and the Caspian
T2  - The journal of the Royal Geographical Society
Y1  - 2008
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/19647
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30-1101468
N1  - Signatur: Zs 1683 ; ISSN : 0266-6235
VL  - 8
SP  - 135
EP  - 136
ER  -