@book{58,
	author = {Prager, B. and Richter, F.},
	title = {Beilsteins handbuch der Organischen chemie Supplementary Band (vol-17 to 19)},
	publisher = {Berlin Verlag Von Julius Springer},
	year = {1934},
	series = {17 to 19},
	address = {Berlin}
}