@article{TMF_1971_6_3_a4,
     author = {I. V. Baum and M. V. Gorbatenko and Yu. A. Romanov},
     title = {Matrix-space dynamics with~allowance for~third-order terms {in~the~Lagrangian}},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {338--347},
     publisher = {mathdoc},
     volume = {6},
     number = {3},
     year = {1971},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1971_6_3_a4/}
}