1. L'exploracion del corazon per via esofagica;Taquini,1936
2. Intratracheal Auscultation;Groedel;Exper. Med. & Surg.,1950
3. A Study of Heart Sounds and Murmurs by Direct Heart Recordings;Bertrand;Circulation,1956
4. Intracardiac Phonocardiography;Yamakawa;Am. Heart J.,1954
5. Le micromanometre intracardiaque Allard-Laurens;Soulié,1954