TY - JOUR AU - E. I. Kugushev AU - V. I. Nikonov TI - An estimate for the number of relative equilibria in the motion of a plane rigid body and a material point under mutual attraction JO - Vestnik Moskovskogo universiteta. Matematika, mehanika PY - 2015 SP - 37 EP - 41 IS - 6 UR - http://geodesic.mathdoc.fr/item/VMUMM_2015_6_a5/ LA - ru ID - VMUMM_2015_6_a5 ER -