@article{IVM_1996_6_a7,
     author = {V. S. Medvedev and E. L. Fedorov},
     title = {Generalization of {Mel'nikov's} theorem to separatrix contours in the autonomous case},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {63--67},
     publisher = {mathdoc},
     number = {6},
     year = {1996},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1996_6_a7/}
}