@article {66381,
	title = {Electromagnetic tracking system with reduced distortion using quadratic excitation},
	journal = {International journal of computer assisted radiology and surgeryInternational Journal of Computer Assisted Radiology and Surgery},
	volume = {9},
	year = {2014},
	month = {2014},
	pages = {323-332},
	isbn = {1861-6429},
	author = {Bien, Tomasz and Li, Mengfei and Salah, Zein and Rose, Georg}
}
