@book{Gebhardt1986, author="Hans Gebhardt", title="Towns, roads, markets and economic geographical development in the Yemen Arab Republic", year="1986", booktitle="Petites villes et villes moyennes dans le Monde Arabe. Vol 1", publisher="Centre d'√Čtudes et de Recherches URBAMA (Urbanisation du Monde Arabe)", edition="Fascicule de Recherches N", address="Tours", pages="210-29", keyword0="Amran", keyword1="Markets", keyword2="Migration", keyword3="Remittances", keyword4="Roads", keyword5="YAR", type="chapter" }