@unpublished {OA2412,
	title = {Resonant Effects Applied in Power Conversion for Contactless Energy Transfer},
	journal = {Seminar on Resonant Processes and Contactless Energy},
	year = {2010},
	month = {August},
	url = {http://oa.uninova.pt/2412/},
	author = {Stanimir Valtchev}
}
