TY  - JOUR
TI  - Estimating the Return to Schooling: Progress on Some Persistent Econometric Problems
AU  - David Card
JO  - Econometrica
PY  - 2001
VL  - 69
IS  - 5
DO  - 10.1111/1468-0262.00237
UR  - https://doi.org/10.1111/1468-0262.00237
ER  -