@article{TMF_1971_8_1_a2,
     author = {V. B. Serebrennikov and A. E. Shabad},
     title = {Method of calculation of the spectrum of a~centrally symmetric {Hamiltonian} on the basis of approximate $O_4$ and $SU_3$ symmetry},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {23--36},
     publisher = {mathdoc},
     volume = {8},
     number = {1},
     year = {1971},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1971_8_1_a2/}
}