@book{12789,
	author = {Nakagami, Yoshiomi and Takesaki, Masamichi and Takesaki, Masamichi; jt. auth.},
	title = {Duality for crossed products of Von Neumann algebras},
	publisher = {Springer-Verlag},
	year = {1979},
	series = {Lecture notes in Mathematics},
	address = {Berlin}
}