@book{22289,
	author = {Heiligenthal, Roman.},
	title = {Werke als Zeichen :},
	publisher = {Mohr},
	year = {1983},
	address = {Tubingen},
	note = {A revision of the author's thesis (doctoral)--Ruprecht-Karl Universitat zu Heidelberg, 1981. Includes indexes.}
}