TY  - JOUR
A1  - Choi, I.
T1  - Unit root tests for panel data
Y1  - 2001
DO  - 10.1016/S0261-5606(00)00048-6
JF  - Journal of International Money and Finance
VL  - 20
IS  - 2
SP  - 249
EP  - -272

ER  -