TY  - JOUR
AU  - V. G. Romanov
TI  - A~statement of the converse problem for first-order symmetric hyperbolic systems
JO  - Matematičeskie zametki
PY  - 1978
SP  - 231
EP  - 236
VL  - 24
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_1978_24_2_a9/
LA  - ru
ID  - MZM_1978_24_2_a9
ER  -