"Skin and Touch" - by Shankar Vedantam

"Introduction to Subtle Touch Techniques" - by Suzana Delmanto

"Psychological Kinesiology - Psychophysiological Integration" - by Fernando Cortese (psychotherapist)

"Excerpts from Jung´s Work Related to Body and Psyche" - compiled by Rosa Farah & Anita J. Ribeiro

"Calatonia: Its use in psichotherapy" - Lucy Coelho Penna, Ph.D

"Calatonia: A Junguian Relaxation Method" - Lucy Coelho Penna, Ph.D