TY  - JOUR
AU  - A. S. Makin
TI  - Estimates that are sharp with respect to order for eigen- and associated functions of an elliptic operator and their derivatives
JO  - Differencialʹnye uravneniâ
PY  - 1990
SP  - 85
EP  - 93
VL  - 26
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1990_26_1_a10/
LA  - ru
ID  - DE_1990_26_1_a10
ER  -