TY  - JOUR
AU  - A. I. Vagabov
TI  - Summation of $n$-multiple expansions in principal functions of

JO  - Doklady Akademii Nauk
PY  - 1989
SP  - 20
EP  - 23
VL  - 309
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1989_309_1_a2/
LA  - ru
ID  - DAN_1989_309_1_a2
ER  -