@article {Carbajal2013a,
	title = {Improving N-Wire Phantom-based Freehand Ultrasound Calibration},
	year = {2013},
	month = {02/2013},
	address = {Toronto, Canada, February 4th-5th 2013},
	author = {Guillermo Carbajal and Andras Lasso and {\'A}lvaro G{\'o}mez and Gabor Fichtinger}
}
