@book{355830,
	author = {Hummel, Rolf E.,},
	title = {Electronic properties of materials},
	publisher = {Springer,},
	year = {c2011.},
	address = {New York :},
	edition = {4th ed.},
	url = {http://www.columbia.edu/cgi-bin/cul/resolve?clio9060116}
}