@article{VUU_2010_2_a1,
     author = {P. E. Ryabov and M. P. Kharlamov},
     title = {Analytic classification of singularities in the generalized {Kowalevski} case},
     journal = {Vestnik Udmurtskogo universiteta. Matematika, mehanika, kompʹ\^uternye nauki},
     pages = {19--28},
     publisher = {mathdoc},
     number = {2},
     year = {2010},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VUU_2010_2_a1/}
}