@book{29726,
	author = {Harpe, P. de la. and Harpe, P. de la.},
	title = {Classical banach-lie algebras and banach-lie groups of operators in hilbert space /},
	publisher = {Springer,},
	year = {1972.},
	series = {Lecture notes in mathematics.},
	address = {[S.l.] :}
}