@article{TMF_2000_124_3_a8,
     author = {I. \'E. Stepanova and A. V. Shchepetilov},
     title = {Two-body problem on spaces of constant curvature: {II.~Spectral} properties of the {Hamiltonian}},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {481--489},
     publisher = {mathdoc},
     volume = {124},
     number = {3},
     year = {2000},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2000_124_3_a8/}
}