共 6 条
[1]
FLETCHER H, SPEECH HEARING, P67
[2]
HICKMAN CN, 1934, J ACOUST SOC AM, V6, pA54
[3]
Electrical wave filters employing quartz crystals as elements
[J].
BELL SYSTEM TECHNICAL JOURNAL,
1934, 13
:405-452
[4]
STANTON GT, 1934, J ACOUST SOC AM, V5, pA221
[5]
WENTE EC, 1933, J ACOUST SOC AM, V5, pA65
[6]
Wolf SK, 1934, J SOC MOTION PIC ENG, V22, P242