%0 Journal Article %A V. V. Kalashnikov %T Typical integrable Hamiltonian systems on a~four-dimensional symplectic manifold %J Izvestiya. Mathematics %D 1998 %P 261-285 %V 62 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM2_1998_62_2_a2/ %G en %F IM2_1998_62_2_a2