@inproceedings{tuceryan2002singlepoint,
 author = {Mihran Tuceryan and Nassir Navab},
 title = {Single point active alignment method (SPAAM) for opticalsee-through HMD calibration for AR},
 booktitle =    "Presence: Teleoperators and Virtual Environments",
 volume =       "Vol. 11, No. 3",
 pages =	 	"259-276",
 month =        "",
 year =         "2002"
}