1. J. Hirschberg, T. Szende, Pathological cry Stridor and Cough in Infants. A Clinical Acoustic Study, Akademiai Kiado, Budapest, 1982.
2. The origin of cough sounds;Korpas;Clin. Respiratory Physiol.,1987
3. Methods of recording and analysing cough sounds;Subburaj;Pulmonary Pharmacol.,1996
4. Methods of assessing cough and antitussives in man;Korpas;Pulmonary Pharmacol.,1996
5. Assessment of a cough counter for pigs;Robertson;Farm Building Prog.,1989