TY - JOUR AU - R. V. Jolos AU - V. G. Kartavenko AU - V. Rybarska TI - Bogolyubov's method in the problem of pairing vibrations and the problem of eliminating unphysical states JO - Teoretičeskaâ i matematičeskaâ fizika PY - 1974 SP - 353 EP - 363 VL - 20 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TMF_1974_20_3_a7/ LA - ru ID - TMF_1974_20_3_a7 ER -