1. Costa, P. T., & McCrae, R. R. (1992). NEO PI-R: Professional manual. Lutz, FL: Psychological Assessment Resources Inc.
2. Easwaran, E. (1991). Meditation: A simple eight-point program for translating spiritual ideals into daily life (2nd ed.). Tomales, CA: Nilgiri Press. (Original work published 1978).
3. Labbé, E., Schmidt, N., Babin, J., & Pharr, M. (2007). Coping with stress: The effectiveness of different types of music. Applied Psychophysiology and Biofeedback, 32(3/4), 163–168.
4. Ludwig, D. S., & Kabat-Zinn, J. (2008). Mindfulness in medicine. Journal of the American Medical Association, 300(11), 1350–1352.
5. Moss, D. (2008). Special issue: The psychophysiology of respiration and the effects of breath training. Biofeedback, 36(2), 43–44.