kw.\*:("SYSTEME TXK3")
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TXK3 DIRECTOR-AREA LOCAL EXCHANGES USING BXB 1112 CROSSBAR EQUIPMENT. II. SYSTEM FEATURES AND MAINTENANCE ARRANGEMENTS.BELL RL; BLOXHAM G; GALLAGHAN BF et al.1974; POST OFF. ELECTR. ENGRS J.; G.B.; DA. 1974; VOL. 67; NO 3; PP. 169-175Article
