TY  - JOUR
A1  - Ho, D.
A1  - Imai, K.
A1  - King, G.
A1  - Stuart, E.
T1  - Matching as nonparametric preprocessing for reducing model dependence in parametric causal inference
Y1  - 2007
DO  - 10.1093/pan/mpl013
UR  - http://gking.harvard.edu/files/abs/matchp-abs.shtml
JF  - Political Analysis
VL  - 15
IS  - 3
SP  - 199
EP  - -236

ER  -