@book{13799,
	author = {Gumhalter, Hans.},
	title = {Power supply in telecommunications /},
	publisher = {Springer,},
	year = {2012.},
	address = {[S.l.] :},
	edition = {3rd ed. 1995. Softcover reprint of the original 3rd ed. 1995.},
	url = {http://www.amazon.com/exec/obidos/ASIN/3642784054/chopaconline-20}
}