@article{TMF_1990_83_1_a10,
     author = {V. I. Gerasimenko and D. Ya. Petrina},
     title = {Existence of~the {Boltzmann--Grad} limit for an~infinite system of~hard spheres},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {92--114},
     publisher = {mathdoc},
     volume = {83},
     number = {1},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1990_83_1_a10/}
}