@book{18969,
	author = {Encyclopaedia of Mathematical Sciences and Shubin, M. A. ; ed.},
	title = {Partial differential equations; Pt. VIII - Overdetermined systems, dissipative singular Schrodinger Operator, Index theory},
	publisher = {Springer-Verlag},
	year = {1996},
	series = {Encyclopaedia of Mathematical Sciences},
	address = {New York},
	note = {"Purchased under NBHM grant for the year 1998-99"}
}