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- [5] STUDIES ON SPACE-DIVISION DIGITAL SWITCHING NETWORKS ELECTRONICS & COMMUNICATIONS IN JAPAN, 1970, 53 (10): : 54 - +
- [7] NOVEL SWITCHING COMPONENTS FOR ELECTRONIC TELEPHONE EXCHANGES IEEE TRANSACTIONS ON COMMUNICATION TECHNOLOGY, 1966, CO14 (03): : 246 - +
- [8] FULLY-ELECTRONIC SPACE-DIVISION SPEECH PATH IN MODERN PABX-SYSTEMS NACHRICHTENTECHNISCHE ZEITSCHRIFT, 1978, 31 (10): : 746 - 751
- [9] NETWORK UTILIZATION IN A SECTIONALIZED SPACE-DIVISION SWITCHING SYSTEM IEEE TRANSACTIONS ON COMMUNICATION TECHNOLOGY, 1966, CO14 (03): : 237 - +