TY  - JOUR
AU  - V. D. Batukhtin
TI  - The differentiability of the cost of a differential approach game
JO  - Differencialʹnye uravneniâ
PY  - 1972
SP  - 2140
EP  - 2148
VL  - 8
IS  - 12
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1972_8_12_a2/
LA  - ru
ID  - DE_1972_8_12_a2
ER  -