@article{WiRoGoEn2009,
	title={Parameter characterisation and automatic impedance matching of 13.56 {MHz} {NFC} antennas},
	author={Harald Witschnig, Michael Roland, Martin Gossar, Harald Enzinger},
	journal={e \& i Elektrotechnik und Informationstechnik},
	publisher={Springer Wien},
	volume={126},
	number={11},
	year={2009},
	month=NOV,
	pages={415-422},
	language={english}
}