共 8 条
- [2] BEASLEY WC, 1936, NATL HLTH SURVEY HEA, V5
- [4] MONTGOMERY HC, 1932, BELL LAB REC, V10, P311
- [5] Shewhart WA, 1931, EC CONTROL QUALITY M
- [6] On minimum audible sound fields [J]. JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, 1933, 4 (04) : 288 - 321
- [8] WITTING EG, 1940, LARYNGOSCOPE, V50, P259