%0 Journal Article %A V. P. Belavkin %T A stochastic calculus of quantum input-output processes and quantum nondemolition filtering %J Itogi Nauki i Tekhniki. Seriya Sovremennye Problemy Matematiki. Noveishie Dostizheniya %D 1989 %P 29-67 %V 36 %I mathdoc %U http://geodesic.mathdoc.fr/item/INTD_1989_36_a1/ %G ru %F INTD_1989_36_a1