TY - JOUR AU - T. A. Yakovleva TI - Variational methods in the theory of rigidity of motion JO - Vestnik Moskovskogo universiteta. Matematika, mehanika PY - 1999 SP - 66 EP - 67 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/VMUMM_1999_1_a16/ LA - ru ID - VMUMM_1999_1_a16 ER -