@book{7119,
	author = {Bork, H. R. and Ricken, W.},
	title = {Soil erosion, holocene and pleistocene soil development},
	publisher = {Catena Verlag,},
	year = {1983},
	series = {CATENA Supplement},
	address = {Cremlingen :},
	note = {Texto en alemán}
}