@article{SM_2012_203_1_a1,
     author = {N. S. Logacheva},
     title = {Classification of nondegenerate equilibria and degenerate 1-dimensional orbits of the {Kovalevskaya-Yehia
}},
     journal = {Sbornik. Mathematics},
     pages = {28--59},
     publisher = {mathdoc},
     volume = {203},
     number = {1},
     year = {2012},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_2012_203_1_a1/}
}