TY  - JOUR
AU  - A. I. Subbotin
AU  - A. M. Tarasyev
TI  - Conjugate derivatives of the value function of a differential
JO  - Doklady Akademii Nauk
PY  - 1985
SP  - 559
EP  - 564
VL  - 283
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1985_283_3_a9/
LA  - ru
ID  - DAN_1985_283_3_a9
ER  -