TY  - JOUR
AU  - V. K. Isaev
TI  - The Pontrjagin maximum principle and $\Pi$-splines
JO  - Doklady Akademii Nauk
PY  - 1981
SP  - 22
EP  - 25
VL  - 256
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1981_256_1_a3/
LA  - ru
ID  - DAN_1981_256_1_a3
ER  -