%0 Journal Article %A Vladimir Chilin %A Semyon Litvinov %T A Banach Principle for Semifinite von Neumann Algebras %J Symmetry, integrability and geometry: methods and applications %D 2006 %V 2 %U http://geodesic.mathdoc.fr/item/SIGMA_2006_2_a22/ %G en %F SIGMA_2006_2_a22