1. ‘Stopping distance considerations for fixed-force and constant deceleration brakes’, John Hopkins University Applied Physics Laboratory Memo., F1C(0)-74-003, February, 1974
2. ‘Augmented block guidance for short-headway transportation systems’, John Hopkins University Applied Physics Laboratory Transportation Program Report, 023, September, 1972 NTIS No. PB214391/5
3. ‘Speed and headway considerations for the new urban demonstration’, John Hopkins University Applied Physics Laboratory Transportation Interim Report, 001, February, 1973