TY - JOUR AU - A. A. Zaitsev AU - E. V. Zaitseva TI - Integrable newtonian systems with nonpotential force fields JO - Matematičeskoe modelirovanie PY - 2006 SP - 126 EP - 128 VL - 18 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MM_2006_18_5_a10/ LA - ru ID - MM_2006_18_5_a10 ER -