TY  - JOUR
AU  - GUNNAR BERGENDAL
TI  - On spectral functions belonging to an elliptic differential operator with variable coefficients
JO  - Mathematica Scandinavica
PY  - 1957
SP  - 241
EP  - 254
VL  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MS2_1957__5_165664/
ID  - MS2_1957__5_165664
ER  -