@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'Études 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"
}