TY  - JOUR
AU  - L. Gårding
TI  - Eigenfunction expansions connected with elliptic differential operators
JO  - Matematika
PY  - 1957
SP  - 107
EP  - 116
VL  - 1
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MAT_1957_1_3_a4/
LA  - ru
ID  - MAT_1957_1_3_a4
ER  -