@article {86626,
	title = {Insulator to Metal Transition in Sulfur-Doped Silicon},
	journal = {Phys. Rev. Lett.},
	volume = {106},
	number = {178701},
	year = {2011},
	author = {M. T. Winkler and D. Recht and Sher, M.J. and A. J. Said and Mazur, E. and M. J. Aziz}
}
