1. “The Definition and Assessment of Respiratory Function,”;DONALD;Brit. Med. J.,1953
2. “Simple Bedside Test of Respiratory Function,”;SNIDER;JAMA,1959
3. “Ein neues Pneumonometer zur Bestimmung des Expirationsstosses (maximale Austmungs Stromstärke),”;HADORN;Schweiz med. Wchnschr.,1942
4. “Clinical Pneumotachograph,”;SILVERMAN,1950
5. “Flow Meter for Recording Respiratory Flow of Human Subjects”;LILLY,1950