1. Experimental studies of physical fitness in relation to age;Robinson;Arbeitsphysiologie,1938
2. Physiologic aspects of aging;Shock;J Am Diet Assoc,1970
3. Changes in cardiac output with age;Brandfonbrender;Circulation,1955
4. Exercise physiology in health and disease;Wasserman;Am Rev Respir Dis,1975
5. Detecting the threshold of anaerobic metabolism;Wasserman;Am J Cardiol,1964