TY - JOUR AU - A. A. Davydov AU - V. M. Zakalyukin TI - Point singularities of a~conditional minimum on a~three-dimensional manifold JO - Informatics and Automation PY - 1998 SP - 113 EP - 129 VL - 220 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TRSPY_1998_220_a6/ LA - ru ID - TRSPY_1998_220_a6 ER -