标题:Identification of Causal Effects Using Instrumental Variables
作者:Joshua D. Angrist , Guido W. Imbens , Donald B. Rubin
出版社:Journal of the American Statistical Association, Vol. 91, 1996
电子链接:http://www.questia.com/googleScholar.qst;jsessionid=LLpB8yw9gTRVK0p0wz0GVP1nyqghlkJJXbnThXtqcfFyBhyRhZhk!921627548!-2106413634?docId=5002269527