Lashley J. K. et al. An empirical account of temperature biofeedback applied in groups // Psychological reports. 1987. № 60 (2). P. 379–388; Fahrion S. et al. Biobehavioral treatment of essential hypertension: a group outcome study // Biofeedback and self-regulation. 1986. № 11 (4). P. 257–277.
