@article{RM_1994_49_1_a10,
     author = {B. M. Gurevich and O. V. Radkevich},
     title = {Asymptotically additive integrals of motion of particles of non-identical mass},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {233--234},
     publisher = {mathdoc},
     volume = {49},
     number = {1},
     year = {1994},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1994_49_1_a10/}
}