@article{TMF_1994_101_3_a8,
     author = {R. P. Gaida and V. I. Tretyak and Yu. G. Yaremko},
     title = {Center-of-mass variables in the relativistic {Lagrangian} dynamics of a system of particles},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {402--416},
     publisher = {mathdoc},
     volume = {101},
     number = {3},
     year = {1994},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1994_101_3_a8/}
}