@book{1710,
	author = {Schlie, Alfred, and Schwarzenbach, Hermann,},
	title = {Handbuch für den luftfahrt-unterricht,},
	publisher = {C. Lange,},
	year = {c1935 [i.e. 1944]},
	address = {Duisburg,},
	note = {Loose-leaf.}
}