共 30 条
- [1] BRYAN ME, 1964, ELECTRON ENGNG, V36, P154
- [3] DENO RL, 1933, T AM RHINOL LARYNGOL, V39, P26
- [4] Fletcher H., 1953, SPEECH HEARING COMMU
- [6] HOLST H E, 1963, Acta Otolaryngol Suppl, V182, P73
- [8] JEPSEN O, 1963, MODERN DEVELOPMENTS, P202
- [9] JEPSEN O, 1955, THESIS U AARHUS
- [10] JERGER JF, 1963, MODERN DEVELOPMEN ED, P202