%0 Journal Article %A A. V. Bolsinov %A A. T. Fomenko %T Exact topological classification of Hamiltonian flows on smooth two-dimensional surfaces %J Zapiski Nauchnykh Seminarov POMI %D 1996 %P 22-53 %V 235 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_1996_235_a2/ %G en %F ZNSL_1996_235_a2