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A Note on Amemiya'a form of the Weighted Least Squares Esrtimator.
Koenker, R., (1992)
Galton, Edgeworth, Frisch, and prospects for quantile regression in econometrics
Koenker, R., (2000)
Reappraising Medfly Longevity: A Quantile Regression Survival Analysis
Koenker, R.,