TY - JOUR AU - N. V. Borisov TI - Structure of canonical variables in the theory of quantum systems with finitely and infinitely many degrees of freedom JO - Teoretičeskaâ i matematičeskaâ fizika PY - 1974 SP - 27 EP - 36 VL - 19 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TMF_1974_19_1_a2/ LA - ru ID - TMF_1974_19_1_a2 ER -