TY  - JOUR
AU  - Chukwu, Ethelbert N.
TI  - On the reachable sets of non-autonomous linear control systems
JO  - Portugaliae mathematica
PY  - 1975
SP  - 91
EP  - 103
VL  - 34
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/PORMA_1975__34_2_115253/
LA  - en
ID  - PORMA_1975__34_2_115253
ER  -