Virtual exertions: A user interface combining visual information, kinesthetics and biofeedback for virtual object manipulation. - Kevin Ponto; Ryan A. Kimmel; Joe Kohlmann; Aaron Bartholomew; Robert G. Radwin (3DUI, 2012)

Manually Locating Physical and Virtual Reality Objects. - Karen B. Chen; Ryan A. Kimmel; Aaron Bartholomew; Kevin Ponto; Michael Gleicher; Robert G. Radwin (Hum. Factors, 2014)