Greenwald R., Chu J., Crisco JJ, Finkelstein J: Head Impact Telemetry System (HITS™) for Measurement of Head Acceleration in the Field. American Society of Biomechanics Annual Meeting, Toledo, OH, September 25-27, 2003

Crisco JJ, Greenwald RM, Chu J: A novel algorithm for estimating head impact magnitude and location. IV World Congress of Biomechanics, Calgary, Alberta, August 4-9, 2002.