@article {Cleary2001,
	title = {Automatic registration for percutaneous vertebral body tracking},
	journal = {International Congress Series},
	volume = {1230},
	year = {2001},
	pages = {1215 - 1216},
	issn = {0531-5131},
	doi = {DOI: 10 1016/S0531-5131(01)00045-0 },
	url = {http://www sciencedirect com/science/article/B7581-47V9SDF-8B/2/b4387cef8e19f8c7dbc5d52fa97414de},
	author = {Kevin Cleary and Sheng Xu and Gabor Fichtinger and Neil Glossop}
}
