TY  - JOUR
AU  - V. V. Barkovskii
TI  - Expansion in the eigenfunctions of two pseudodifferential operators
JO  - Differencialʹnye uravneniâ
PY  - 1974
SP  - 276
EP  - 280
VL  - 10
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1974_10_2_a12/
LA  - ru
ID  - DE_1974_10_2_a12
ER  -