@book{221656,
	author = {Mader, Günter. and Zimmermann, Elke.},
	title = {Walls},
	publisher = {W.W. Norton & Co.},
	year = {2011.},
	address = {New York},
	note = {Translation of: Mauern : Elemente der Garten-und Landschaftsarchitektur.}
}