1. “The Graphic Registration of the Normal Heart Sounds”;Rappaport;Am. Heart J.,1942
2. “The Duration of the Normal Heart Sounds”;Luisada;Brit. Heart J.,1949
3. “Physiological Range of Electrical Systole and Heart Sounds in Children”;Aravanis;Cardiologia,1956
4. Aravanis, C. and Luisada, A. A.: “The Murmur in Aortic Stenosis,” Am. Heart J. (in press).
5. The Heart Beat;Luisada,1953