TY - JOUR AU - A. A. Arsen'ev TI - On two mathematical models for description of a~beam of charged particles in gas JO - Matematičeskoe modelirovanie PY - 1989 SP - 101 EP - 106 VL - 1 IS - 9 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MM_1989_1_9_a9/ LA - ru ID - MM_1989_1_9_a9 ER -