@article{TMF_2013_176_2_a2,
     author = {P. E. Ryabov},
     title = {Phase topology of one irreducible integrable problem in the~dynamics},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {205--221},
     year = {2013},
     volume = {176},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2013_176_2_a2/}
}