@conference {OA2335,
	title = {Contactless Energy Transmission with Optimal Efficiency},
	booktitle = {IEEE 28th Annual Conference of the Industrial Electronics Society IECON 02},
	year = {2002},
	month = {November},
	pages = {1330{\textendash}1335},
	url = {http://oa.uninova.pt/2335/},
	author = {Stanimir Valtchev and Beatriz Borges and J. Ben Klaassens}
}
