共 11 条
[1]
BERANEK LL, 1960, NOISE REDUCTION, P297
[2]
Cremer H., 1948, FREQUENZ, V2, P61
[6]
VER IL, 1969, TIR72 BOLT BER NEWM
[7]
1971, IN7115 RIV AC LABS R
[8]
[No title captured]
[9]
1966, 661212 CED KNOLLS AC
[10]
1971, TL71211 RIV AC LABS