Media type: E-Article Title: Telephone hearing aid Contributor: Wojcik, Jacek J.; Przybysz, Andrzej; Milton, Peter R. Published: Acoustical Society of America (ASA), 1987 Published in: The Journal of the Acoustical Society of America, 81 (1987) 1, Seite 208-208 Language: English DOI: 10.1121/1.394955 ISSN: 0001-4966; 1520-8524 Keywords: Acoustics and Ultrasonics ; Arts and Humanities (miscellaneous) Origination: Footnote: