TY  - JOUR
AU  - S. Z. Levendorskii
TI  - An algebra of boundary value problems for a class of pseudodifferential operators of variable order
JO  - Izvestiya. Mathematics 
PY  - 1992
SP  - 131
EP  - 154
VL  - 38
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IM2_1992_38_1_a5/
LA  - en
ID  - IM2_1992_38_1_a5
ER  -