TY  - JOUR
AU  - Kim, In-Jae
AU  - Shader, Bryan L.
TI  - Sign patterns that require a positive or nonnegative left inverse
JO  - The electronic journal of linear algebra
PY  - 2008
SP  - 209
EP  - 218
VL  - 17
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/ELA_2008__17__a29/
LA  - en
ID  - ELA_2008__17__a29
ER  -