1. The use of ultrasonic reflectoscope for the continuous recording of the movements of heart walls;Edler;Kungl Fysiographiske Sällskapets i Lund Forhendlingar March 10,1954
2. Cardiac studies by ultrasounds;Edler,1962
3. The diagnosis of intra-atrial tumours and thrombi by the ultrasonic echo method;Effert;Ger Med Mon,1959
4. Echocardiographic diagnosis of left atrial myxoma;Schattenberg;Mayo Clin Proc,1968
5. Atrial myxoma. II. Phonocardiographic, echocardiographic, hemodynamic, and angiographic features in nine cases;Nasser;Am Heart J,1972