TY - JOUR AU - N. N. Subbotina TI - Universal optimal strategies in positional differential games JO - Differencialʹnye uravneniâ PY - 1983 SP - 1890 EP - 1896 VL - 19 IS - 11 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1983_19_11_a8/ LA - ru ID - DE_1983_19_11_a8 ER -