References
- Budzynski T. Some Applications of Biofeedback Produced Twilight Stales. paper presented at a meeting of the American Psychological Association, Washington, DC, 1971
- Budzynski T., Stoyva J. Biofeedback techniques in behavior therapy. Biofeedback and Self-Control, P. Shapiro. Aldine, Chicago 1972, Chap. 33
- Lawrence J. Alpha Brain Waves. Avon, New York 1972