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- [2] ANNIVERSARIES OF THE IRON AND STEEL-INDUSTRY 1980 - TREATMENT OF STEEL MELTS WITH CALCIUM STAHL UND EISEN, 1980, 100 (01): : 18 - 30
- [3] SIGNIFICANT ANNIVERSARIES IN THE IRON AND STEEL-INDUSTRY DURING THE 1ST 3 MONTHS OF 1989 STAHL UND EISEN, 1989, 109 (01): : 80 - 80