@book{gledocs_11858_00-1735-0000-0001-3170-2,
author = {Fiedler-Volmer, Rainer},
title = {Der Es-Safya-Graben im Nordsudan - Geologie und Tektonik},
year = {1998},
publisher = {Univ. Berlin},

note = { \url {http://hdl.handle.net/11858/00-1735-0000-0001-3170-2}},
}