Krebs, P., Burkhalter, J., Lewis, S., Hendrickson, T., Chiu, O., Fearn, P., . . . Ostroff, J. (2009). Development of a Virtual Reality Coping Skills Game to Prevent Post-Hospitalization Smoking Relapse in Tobacco Dependent Cancer Patients. J Virtual Worlds Res.

Krebs, Paul, Jack Burkhalter, Shireen Lewis, Tinesha Hendrickson, Ophelia Chiu, Paul Fearn, Wendy Perchick, và Jamie Ostroff. "Development of a Virtual Reality Coping Skills Game to Prevent Post-Hospitalization Smoking Relapse in Tobacco Dependent Cancer Patients." J Virtual Worlds Res 2009.

Krebs, Paul, et al. "Development of a Virtual Reality Coping Skills Game to Prevent Post-Hospitalization Smoking Relapse in Tobacco Dependent Cancer Patients." J Virtual Worlds Res 2009.