@book{11934,
	author = {Birman, M. S. and Solomjak, M. Z. and Solomjak, M. Z.},
	title = {Spectral theory of self-adjoint operators in hilbert space /},
	publisher = {D. Reidel,},
	year = {1987},
	series = {Mathematics and its applications (Soviet series)},
	address = {Dordrecht:}
}