@book{Schmidtke2011,
author = {Schmidtke, Sabine and Thiele, Jan},
year = {2011},
language = {eng},
copyright = {http://www.fu-berlin.de/sites/refubium/rechtliches/Nutzungsbedingungen},
title = {Preserving Yemen's Cultural Heritage},
url = "http://dx.doi.org/10.17169/refubium-21184",
}