@book{16818,
	author = {Simpson, J. C. E.},
	title = {Condensed pyridazine and pyrazine rings (cinnolines, phthalazines, and quinoxalines) /},
	publisher = {Interscience Publishers,},
	year = {c1953.},
	series = {The Chemistry of heterocyclic compounds, a series of monographs},
	address = {New York :}
}