TY  - JOUR
AU  - V. G. Boltyanskii
TI  - The tents method and the theory of extremum
JO  - Fundamentalʹnaâ i prikladnaâ matematika
PY  - 1997
SP  - 3
EP  - 13
VL  - 3
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/FPM_1997_3_1_a0/
LA  - ru
ID  - FPM_1997_3_1_a0
ER  -