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"On Likelihood Ratio Tests of Structural Coefficients: Anderson-Rubin (1949) revisited"
Kunitomo, Naoto, (2007)
"On the Asymptotic Optimality of the LIML Estimator with Possibly Many Instruments"
Anderson, T. W., (2008)
"On Finite Sample Properties of Alternative Estimators of Coefficients in a Structural Equation with Many Instruments"