1. The Murmur of High Pressure in the Pulmonic Artery;Steell;Med. Chron.,1889
2. Ueber relative Insuff. der Pulmon Arterienklappen bei mitral Stenosis;Pawinsky;Deutsch. Arch. f. klin. Med.,1894
3. Diseases of the Pulmonary Valves;Pitt,1910
4. Relative Pulmonic Insufficiency;Hall;Am. Jour. Med. Sc.,1914