TY - JOUR AU - D. S. Telyakovskii AU - S. A. Telyakovskii TI - Geometric approach to finding the conditional extrema JO - Trudy Instituta matematiki i mehaniki PY - 2020 SP - 244 EP - 254 VL - 26 IS - 4 UR - http://geodesic.mathdoc.fr/item/TIMM_2020_26_4_a16/ LA - ru ID - TIMM_2020_26_4_a16 ER -