共 4 条
[1]
ABBOTT NB, 1982, AT&T TECH J, V61, P391
[2]
A MODEL FOR THE SUBJECTIVE EFFECTS OF LISTENER ECHO ON TELEPHONE CONNECTIONS
[J].
BELL SYSTEM TECHNICAL JOURNAL,
1980, 59 (06)
:1009-1060
[3]
PHYSICAL AND TRANSMISSION CHARACTERISTICS OF CUSTOMER LOOP PLANT
[J].
BELL SYSTEM TECHNICAL JOURNAL,
1978, 57 (01)
:35-59