Greg Welch.

Gary Bishop.

UNC Tracker project.

SIGGRAPH 2001 course on tracking.

The Kalman filter.

SIGGRAPH 2001 course on the Kalman filter.

3rdTech.

Axel Mulder.

Virtual musical instruments.

Tracking technology survey.

List of commercial tracking systems and vendors (1994-1998).

3rd Tech.

5th Dimension.

Ascension.

Intersense.

Measurand.

Metamotion.

Phoenix Technologies.

Polhemus.

Vicon.