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- [1] SPEECH PATH EQUIPMENT FOR D60 AND D70 DIGITAL SWITCHING SYSTEMS. Denki Tsushin Kenkyusho Kenkyu Jitsuyoka Hokoku, 1984, 33 (07): : 1737 - 1752
- [2] SPEECH PATH EQUIPMENT OF D60 AND D70 DIGITAL SWITCHING SYSTEMS. Reports of the Electrical Communication Laboratory, 1985, 33 (02): : 300 - 313
- [3] ADVANCED D70 DIGITAL SWITCHING-SYSTEM FOR THE INS - D70 SWITCHING-SYSTEM WITH DIGITAL SUBSCRIBER LINE INTERFACE JAPAN TELECOMMUNICATIONS REVIEW, 1986, 28 (01): : 23 - 29
- [6] SUBSCRIBER LINE INTERFACE CIRCUITS FOR D70 DIGITAL SWITCHING SYSTEM. Reports of the Electrical Communication Laboratory, 1985, 33 (02): : 314 - 323
- [7] SUBSCRIBER LINE INTERFACE CIRCUITS FOR D70 DIGITAL SWITCHING-SYSTEM REVIEW OF THE ELECTRICAL COMMUNICATIONS LABORATORIES, 1985, 33 (02): : 314 - 323
- [8] SUBSCRIBER LINE INTERFACE LSIs FOR THE D70 DIGITAL SWITCHING SYSTEM. Reports of the Electrical Communication Laboratory, 1985, 33 (02): : 324 - 331
- [9] SUBSCRIBER LINE INTERFACE CIRCUITS FOR D70 DIGITAL SWITCHING SYSTEM. Denki Tsushin Kenkyusho Kenkyu Jitsuyoka Hokoku, 1984, 33 (07): : 1763 - 1775
- [10] SUBSCRIBER LINE INTERFACE LSIS FOR THE D70 DIGITAL SWITCHING-SYSTEM REVIEW OF THE ELECTRICAL COMMUNICATIONS LABORATORIES, 1985, 33 (02): : 324 - 331