@article{INTG_1982_13_a4,
     author = {S. B. Kadomtsev and \`E. G. Poznyak and D. D. Sokolov},
     title = {Some problems of {Lobachevskii} geometry that are connected with physics},
     journal = {Itogi Nauki i Tekhniki. Seriya Problemy Geometrii. Trudy Geometricheskogo Seminara},
     pages = {157--188},
     publisher = {mathdoc},
     volume = {13},
     year = {1982},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/INTG_1982_13_a4/}
}