@book{3142,
	author = {Wallraf-Richartz-Museum, author and Robels, Hella, author},
	title = {Katalog ausgewählter Handzeichnungen und Aquarelle im Wallraf-Richartz-Museum /},
	publisher = {J P Bachem},
	year = {1967},
	series = {Its Katalog ; 4},
	address = {Köln :}
}