1. Voluntary control of tension headaches;Otis,1974
2. Fact versus myths in EMG biofeedback;Basmajian;Biofeedback and Self-Regulation,1976
3. The relaxation response;Benson;Psychiatry,1976
4. Clinical applications of biofeedbacl training;Blanchard;Archives of General Psychiatry,1974
5. EMG biofeedback and tension headache: A controlled outcome study;Budzynski;Psychosomatic Medicine,1973