@book{13556,
	author = {Hackbusch, Wolfgang and Fadiman, Regine ; tr.},
	title = {Elliptic differential equations; theory and numerical treatment},
	publisher = {Springer-Verlag},
	year = {1992},
	series = {Springer series in Computational Mathematics, v.18},
	address = {Berlin},
	note = {"Translated from the German by Regine Fadiman and Patrick D. F. Ion"}
}