@book{33098,
	author = {Hummel, Rolf E.,},
	title = {Electronic properties of materials /},
	publisher = {Springer-Verlag,},
	year = {c1993.},
	address = {Berlin ;},
	edition = {2nd ed.},
	url = {http://www.loc.gov/catdir/enhancements/fy0902/92014026-d.html}
}