@article {3132899,
	title = {The Waring problem for finite simple groups},
	journal = {Annals of mathematics},
	year = {2011},
	pages = {1885-1950},
	publisher = {JSTOR},
	isbn = {0003-486X},
	author = {Larsen, Michael and Aner Shalev and Tiep, Pham Huu}
}
