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Simplified Samuelson Conditions for Cubic and Quartic Equations.
Farebrother, R W, (1973)
Simultaneous Confidence Intervals with an Application to the Parkin, Sumner and Ward Model of Wage Inflation.
Farebrother, R W, (1978)
Principal Component Estimators and Minimum Mean Square Error Criteria in Regression Analysis.
Farebrother, R W, (1972)