Hand-held Laser Scanning in Practice. - Bruce C. McCallum; Mark Nixon; N. Brent Price; W. Richard Fright (IVCNZ, 1998)

The Effects of Metals and Interfering Fields on Electromagnetic Trackers. - Mark A. Nixon; Bruce C. McCallum; W. Richard Fright; N. Brent Price (Presence Teleoperators Virtual Environ., 1998)