1. Textbook of Work Physiology;Åstrand,1970
2. A physical approach to hemodynamic aspects of human cardiovascular system;Beneken,1967
3. Network Analysis and Feedback Amplifier Design;Bode,1945
4. Cardiorespiratory transients in exercising man. II. Linear models;Fujihara;J. Appl. Physiol.,1973
5. Cardiac R-wave detector with automatic sensitivity control;Gebben,1973