1. R. T. H. Laenec, De l’Auscultation Mediate (Brosson and Chaude, Paris, 1819).
2. M. I. Rederman, Ter Arkh. 61(4), 113 (1989).
3. N. I. Aleksandrova, A. G. Bobkov, N. A. Bogdanov, et al., in Respiration Disorders: Manual for Physicians, Ed. by N. R. Paleev, Vol. 1: General Pulmanology, Ed. by N. V. Putov (Meditsina, Moscow, 1989), pp. 9–256.
4. P. Forgacs, Chest 73, 399 (1978).
5. R. Loudon and R. L. Murphy, Am. Rev. Respir. Dis. 130, 663 (1984).