@article{TMF_1974_19_1_a2,
     author = {N. V. Borisov},
     title = {Structure of canonical variables in the theory of quantum systems with finitely and infinitely many degrees of freedom},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {27--36},
     publisher = {mathdoc},
     volume = {19},
     number = {1},
     year = {1974},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1974_19_1_a2/}
}