@article {fraiman2001optimal,
	title = {Optimal robust M-estimates of location},
	journal = {Annals of statistics},
	year = {2001},
	pages = {194{\textendash}223},
	publisher = {JSTOR},
	author = {Fraiman, Ricardo and Yohai, V{\'\i}ctor J and Zamar, Ruben H}
}
