@article{TMF_2008_155_2_a10,
     author = {G. P. Pron'ko},
     title = {Kepler problem in a~constant-curvature space},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {317--326},
     publisher = {mathdoc},
     volume = {155},
     number = {2},
     year = {2008},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2008_155_2_a10/}
}