共 7 条
[1]
[Anonymous], 1964, FINANCIAL TIMES
[2]
MEYER E, 1964, ACUSTICA, V14, P138
[3]
PARKIN PH, 1953, ACUSTICA, V3, P1
[5]
1964, J SOUND VIB, V1, P335
[6]
1964, NEW YORK SUNDAY TIME
[7]
1964, NEW YORK TIMES INTER