@book{31664,
	author = {Roulston, David J.},
	title = {An introduction to the physics of semiconductor devices /},
	publisher = {Oxford University Press,},
	year = {c1999.},
	series = {The Oxford series in electrical and computer engineering},
	address = {New York :},
	url = {http://www.loc.gov/catdir/enhancements/fy0604/97052396-d.html}
}