@book{von Rohr1979,
author="Heinz Rudolf von Rohr and Gottfried Rohner",
title="Yemen, Land am Tor der Tränen",
year="1979",
publisher="Verlag Welsermühl",
address="Wels",
keyword0="Agriculture",
keyword1="Description",
keyword2="Education",
keyword3="General",
keyword4="Photographs",
type="book"
}