TY  - JOUR
AU  - I. A. Shishmarev
TI  - Estimates exact in a~closed domain of the eigenfunctions of the polyharmonic operator
JO  - Trudy Matematicheskogo Instituta imeni V.A. Steklova
PY  - 1970
VL  - 25
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/RM_1970_25_1_a12/
LA  - ru
ID  - RM_1970_25_1_a12
ER  -