REFERENCES
- Symposium: Physiological measurements of “emotional tension.” Proc. Roy. Soc. Med. 51:75–86 (February) 1958.
- Jacobson, E.: Progressive Relaxation. Chicago, University of Chicago Press. 1938.
- Haugen, G. B., Dixon, H. H. and Dickel, H. A.: A Therapy for Anxiety Tension Reactions. New York, The Macmillan Company, 1958.
- Jacobson, E.: You Must Relax. New York, Whittlesey House, 1957.