@article{FPM_2015_20_2_a12,
     author = {M. P. Kharlamov and P. E. Ryabov},
     title = {Topological atlas of the {Kovalevskaya} top in a~double field},
     journal = {Fundamentalʹna\^a i prikladna\^a matematika},
     pages = {185--230},
     publisher = {mathdoc},
     volume = {20},
     number = {2},
     year = {2015},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FPM_2015_20_2_a12/}
}