@conference {Jain2006,
	title = {Small size fiducial for c-arm tracking (FTRAC)},
	booktitle = {6th Annual Meeting of the International Society for Computer Assisted Surgery,},
	year = {2006},
	pages = {235-238},
	author = {Ameet K. Jain and Iulian Iordachita and Gabor Fichtinger}
}
