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- [1] ELECTRONIC EXCHANGE SYSTEM TXE4A .2. DESIGN AND OPERATION BRITISH TELECOMMUNICATIONS ENGINEERING, 1983, 2 (JUL): : 101 - 110
- [6] TXE4 ELECTRONIC EXCHANGE SYSTEM .1. OVERALL DESCRIPTION AND GENERAL OPERATION POST OFFICE ELECTRICAL ENGINEERS JOURNAL, 1976, 68 (JAN): : 196 - 203
- [7] TXE3 EXPERIMENTAL ELECTRONIC EXCHANGE SYSTEM POST OFFICE ELECTRICAL ENGINEERS JOURNAL, 1969, 62 : 142 - &
- [8] TRAFFIC CHARACTERISTICS OF TXE4 ELECTRONIC EXCHANGE POST OFFICE ELECTRICAL ENGINEERS JOURNAL, 1975, 68 (OCT): : 163 - 169
- [9] MANAGEMENT OF TXE4 ELECTRONIC EXCHANGE PROJECT POST OFFICE ELECTRICAL ENGINEERS JOURNAL, 1973, 65 (JAN): : 247 - 250
- [10] TXE4 ELECTRONIC EXCHANGE SYSTEM .3. SYSTEM SECURITY AND MAINTENANCE FEATURES POST OFFICE ELECTRICAL ENGINEERS JOURNAL, 1977, 70 (APR): : 12 - 20