TY  - JOUR
A1  - Heckman, J.J.
T1  - The scientific model of causality (with a discussion by M.E. Sobel, 99-133)
Y1  - 2005
DO  - 10.1111/j.0081-1750.2006.00163.x
JF  - Sociological Methodology
VL  - 35
IS  - 1
SP  - 1
EP  - -98

ER  -