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Steele L. W., 1989, MANAGING TECHNOLOGY
[3]
1990, CCITT I311 DRAFT REC
[4]
1990, CCITT I432 DRAFT REC
[5]
1990, CCITT I610 DRAFT REC
[6]
1990, CCITT I121 DRAFT REC
[7]
1990, CCITT I150 DRAFT REC
[8]
1990, FANWT001109
[9]
1990, FANWT001110
[10]
1990, SRNWT001763