共 32 条
- [1] Carrier systems on long distance telephone lines [J]. BELL SYSTEM TECHNICAL JOURNAL, 1928, 7 (03): : 564 - 629
- [2] BOGAN LB, 1954, AIEE T 1, V73, P498
- [3] BROWN AB, 1958, IRE CONV REC 4, P37
- [4] CARTER CW, 1946, AIEE T, V65, P1079
- [5] CARUTHERS RS, 1951, AT&T TECH J, V30, P1
- [6] CLARK AB, 1952, AIEE T 1, V71, P245
- [7] CLARK AB, 1925, AIEE T, V44, P481
- [8] DUNCAN JA, 1944, AIEE T, V63, P1032
- [9] EDSON JO, 1959, COMM ELECTRONICS, P832