TY  - CHAP
A1  - Heckman, J.
A1  - Lalonde, R.
A1  - Smith, J.
T1  - The economics and econometrics of active labor market programs
Y1  - 1999
DO  - 10.1016/S1573-4463(99)03012-6
A3  - Ashenfelter, O.
A3  - Card, D.
T2  - Handbook of Labor Economics
CY  - Amsterdam
PB  - Elsevier
SP  - 1865
EP  - -2097

ER  -