TY - JOUR AU - L. È. Èl'sgol'ts TI - Remark on the estimation of the number of points of rest of dynamical systems with retarded argument JO - Uchenye Zapiski Moskovskogo Gosudarstvennogo Universiteta PY - 1954 SP - 221 EP - 222 VL - 165 IS - 165 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/UZMU_1954_165_165_a13/ LA - ru ID - UZMU_1954_165_165_a13 ER -