TY  - JOUR
AU  - Yu. N. Drozhzhinov
TI  - Passive linear systems of partial differential equations
JO  - Sbornik. Mathematics
PY  - 1983
SP  - 269
EP  - 278
VL  - 44
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SM_1983_44_3_a1/
LA  - en
ID  - SM_1983_44_3_a1
ER  -