Proceedings of the 7. International Congress on Acoustics. Budapest, 18-26. Aug. 1971. Sections M-P-U: Physical acoustics - International Congress on Acoustics 2. (Budapest, 1971)
PROCEEDINGS OF THE 7th INTERNATIONAL CONGRESS ON ACOUSTICS VOL. 2. SECTIONS M-P-U (PHYSICAL ACOUSTICS) AKADÉMIAI KIADÓ, BUDAPEST 1971