@book{10021,
	author = {Brennecke, Erna,},
	title = {Schwefelwasserstoff als reagens in der quantitativen analyse,},
	publisher = {F. Enke,},
	year = {1939.},
	series = {Die Chemische analyse ... hrsg. ... von Wilheim Böttger ...},
	address = {Stuttgart,}
}