@article {li1996m,
	title = {M-estimates of regression when the scale is unknown and the error distribution is possibly asymmetric: A minimax result},
	journal = {The Canadian Journal of Statistics/La Revue Canadienne de Statistique},
	year = {1996},
	pages = {193{\textendash}206},
	publisher = {JSTOR},
	author = {Li, Bing and Zamar, Ruben H}
}
