@article{TMF_1997_110_1_a11,
     author = {A. V. Razumov and V. I. Yasnov},
     title = {Hamiltonian reduction of free particle motion on group $\mathrm{SL}(2,\mathbb R)$},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {149--161},
     year = {1997},
     volume = {110},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1997_110_1_a11/}
}