@book{57537,
	author = {"Kolthoff,I.M. and Elving, Philip.J., Eds."},
	title = {Treatise on Analytical Chemistry -Vol. V. Part 2: Analytical Chemistry of the Elements.N.P.Th.Ti.Zr-Hf },
	publisher = {Interscience},
	year = {New York},
	address = {1961}
}