1. Determinants of active state in heart muscle: force, velocity, instantaneous muscle length, time;Sonnenblick,1965
2. Regulation of performance of the heart;Gorlin;Amer J Cardiol,1968
3. The standardization and interpretation of submaximal and maximal tests of working capacity;Taylor;Pediatrics,1963
4. The response of the abnormal heart to exercise;Harvey;Circulation,1962
5. Exercise studies in patients with congenital heart diseases;Hugenholtz;Pediatrics,1963