@article{IM2_1984_23_3_a8,
     author = {V. V. Trofimov},
     title = {Extensions of {Lie} algebras and {Hamiltonian} systems},
     journal = {Izvestiya. Mathematics},
     pages = {561--578},
     year = {1984},
     volume = {23},
     number = {3},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1984_23_3_a8/}
}