TY  - JOUR
AU  - V. A. Il'in
AU  - I. A. Shishmarev
TI  - Fourier series in fundamental systems of functions of the polyharmonic operator
JO  - Doklady Akademii Nauk
PY  - 1969
SP  - 707
EP  - 709
VL  - 189
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1969_189_4_a3/
LA  - ru
ID  - DAN_1969_189_4_a3
ER  -