TY  - JOUR
TI  - Identification of Causal Effects Using Instrumental Variables
AU  - Joshua D. Angrist
AU  - Guido W. Imbens
AU  - Donald B. Rubin
JO  - Journal of the American Statistical Association
PY  - 1996
VL  - 91
IS  - 434
DO  - 10.1080/01621459.1996.10476902
UR  - https://doi.org/10.1080/01621459.1996.10476902
ER  -