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Weighted ridge regression : combining ridge and robust regression methods
Holland, Paul W., (1973)
An interpretation of the probability limit of the least squares estimator in linear models with errors in variables : Memorandum from Institute of Economics, University of Oslo
Gabrielsen, Arne, (1970)
Agricultural supply response using vector autoregressions (VAR) with panel data : some evidence from India
Eckstein, Zvi, (1985)