共 7 条
[1]
BLACK HS, 1947, ELECTRON ENG, V66, P1123
[2]
Clavier A. G., 1947, ELECTRON ENG, V66, P1110
[4]
GRIEG DD, 1947, TELE TECH, V6, P48
[5]
GRIEG DD, 1947, ELECT COMM, V24, P287
[6]
MEACHAM LA, 1948, AT&T TECH J, V27, P1
[7]
Shannon C. E., 1948, BELL SYS TECH J, V27