TY  - JOUR
AU  - V. A. Il'in
TI  - Exact conditions for the localization and convergence of Fourier series in fundamental function systems of the Beltrami operator
JO  - Doklady Akademii Nauk
PY  - 1970
SP  - 20
EP  - 21
VL  - 191
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1970_191_1_a3/
LA  - ru
ID  - DAN_1970_191_1_a3
ER  -