%0 Journal Article %A N. V. Borisov %T Structure of canonical variables in the theory of quantum systems with finitely and infinitely many degrees of freedom %J Teoretičeskaâ i matematičeskaâ fizika %D 1974 %P 27-36 %V 19 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/TMF_1974_19_1_a2/ %G ru %F TMF_1974_19_1_a2