@article{TAM_1985_11_1_a9,
     author = {A. A. Martvnyuk},
     title = {To the theory of stability of {Hamiltonian} systems},
     journal = {Theoretical and applied mechanics},
     pages = {101 },
     publisher = {mathdoc},
     volume = {11},
     number = {1},
     year = {1985},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TAM_1985_11_1_a9/}
}