Time-to-Collision Judgments Under Realistic Driving Conditions. - Raymond J. Kiefer; Carol A. C. Flannagan; Christian J. Jerome (Hum. Factors, 2006)

Toward Developing an Approach for Alerting Drivers to the Direction of a Crash Threat. - Gregory M. Fitch; Raymond J. Kiefer; Jonathan M. Hankey; Brian M. Kleiner (Hum. Factors, 2007)

A Tactile Seat for Direction Coding in Car Driving: Field Evaluation. - Jeroen H. Hogema; Sjoerd C. de Vries; Jan B. F. van Erp; Raymond J. Kiefer (IEEE Trans. Haptics, 2009)