@article{FPM_2000_6_2_a1,
     author = {V. F. Borisov},
     title = {On two-dimensional integral varieties of a~class of discontinuous {Hamiltonian} systems},
     journal = {Fundamentalʹna\^a i prikladna\^a matematika},
     pages = {357--377},
     publisher = {mathdoc},
     volume = {6},
     number = {2},
     year = {2000},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FPM_2000_6_2_a1/}
}