TY - JOUR AU - L. N. Poltavskii TI - Finite controllability of infinite systems of pendulums JO - Doklady Akademii Nauk PY - 1979 SP - 1318 EP - 1321 VL - 245 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1979_245_6_a8/ LA - ru ID - DAN_1979_245_6_a8 ER -