TY  - JOUR
AU  - E. A. Simonyan
TI  - An extension of the Little's formula
JO  - Proceedings of the Yerevan State University. Physical and mathematical sciences
PY  - 2003
SP  - 25
EP  - 29
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/UZERU_2003_3_a3/
LA  - ru
ID  - UZERU_2003_3_a3
ER  -