@article{Vogel1988,
author="Horst Vogel",
title="Deterioration of a mountainous agro-ecosystem in the third world due to emigration of rural labor",
year="1988",
journal="Mountain Research and Development",
volume="8",
number="4",
pages="321-29",
keyword0="Agriculture",
keyword1="Conservation",
keyword2="Manakhah",
keyword3="Terraces",
type="journal"
}