TY - JOUR AU - V. B. Serebrennikov AU - A. E. Shabad TI - Method of calculation of the spectrum of a~centrally symmetric Hamiltonian on the basis of approximate $O_4$ and $SU_3$ symmetry JO - Teoretičeskaâ i matematičeskaâ fizika PY - 1971 SP - 23 EP - 36 VL - 8 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TMF_1971_8_1_a2/ LA - ru ID - TMF_1971_8_1_a2 ER -