TY - JOUR AU - R. V. Gamkrelidze TI - Necessary first order conditions, and the axiomatics of extremal problems JO - Informatics and Automation PY - 1971 SP - 152 EP - 180 VL - 112 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TRSPY_1971_112_a10/ LA - ru ID - TRSPY_1971_112_a10 ER -