TY  - JOUR
AU  - A. N. Kozhevnikov
TI  - Spectral problems for pseudodifferential systems elliptic in the Douglis--Nirenberg sense, and their applications
JO  - Sbornik. Mathematics
PY  - 1973
SP  - 63
EP  - 90
VL  - 21
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SM_1973_21_1_a3/
LA  - en
ID  - SM_1973_21_1_a3
ER  -