TY  - JOUR
A1  - Morgan, S.L.
A1  - Harding, D.J.
T1  - Matching estimators of causal effects: Prospects and pitfalls in theory and practice
Y1  - 2006
DO  - 10.1177/0049124106289164
JF  - Sociological Methods and Research
VL  - 35
IS  - 1
SP  - 3
EP  - -60

ER  -