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The APT Model as Reduced-Rank Regression.
Bekker, Paul, (1996)
Consistent Sets of Estimates for Regressions with Correlated or Uncorrelated Measurement Errors in Arbitrary Subsets of All Variables.
Bekker, Paul, (1987)
Consistent sets of estimates for regressions with correlated or uncorrelated measurement errors in arbitrary subsets of all variables
Bekker, Paul A., (1987)