1. Die Schlafbewegung des Blutdrucks;Katsch;Munchen Med Wschr,1922
2. The Heart Rate;Boas,1932
3. The heart rate during sleep;Boas;JAMA,1929
4. Electrocardiograms during sleep and hypnosis;Wible;J Psychol,1936
5. Respiration and heart action in sleep and hypnosis;Jenness;J Gen Psychol,1937