TY  - JOUR
AU  - B. P. Kufarev
TI  - Relations of the type ``length and area principle''
JO  - Doklady Akademii Nauk
PY  - 1966
SP  - 268
EP  - 270
VL  - 170
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1966_170_2_a8/
LA  - ru
ID  - DAN_1966_170_2_a8
ER  -