@book{3537,
	author = {Katritzky, Alan R. (ed.) and Boulton, A. J. (ed.)},
	title = {Advances in heterocyclic chemistry (vol-12)},
	publisher = {Academic Press},
	year = {1970},
	series = {12},
	address = {New York},
	note = {3849 / 06.08.1973}
}