共 8 条
- [1] BRETSCHNEIDER G, 1966, NACHRICHTENTECH Z CO, V19, P179
- [2] CAPPETTI I, 1967, 5TH INT TEL C NEW YO
- [3] EINARSSON KA, 1961, TELE, P74
- [4] HOFSTETTER H, 1966, NACHRICHTENTECH Z CO, V19, P153
- [5] LEIGHTON AG, 1972, POST OFFICE ELEC ENG, V65, P165
- [6] LOTZE A, 1961, 3 INT TEL C PAR
- [7] RUBAS J, 1965, TELECOMMUN J AUST, P120
- [8] SYSKI R, 1961, 3RD INT TEL C PAR