@book{2584,
	author = {Helfferich, Friedrich G.,},
	title = {Ion exchange.},
	publisher = {McGraw-Hill,},
	year = {1962.},
	series = {McGraw-Hill series in advanced chemistry},
	address = {New York,},
	note = {"The German edition ... appeared in 1959 as the first volume in a series [entitled Ionenaustauscher]"}
}