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- [6] NEW COBALT - RARE-EARTH COMPOUNDS FOR PERMANENT-MAGNETS ELETTROTECNICA, 1977, 64 (08): : 650 - 650
- [9] POWDER-METALLURGY OF RARE-EARTH PERMANENT-MAGNETS INTERNATIONAL JOURNAL OF POWDER METALLURGY, 1989, 25 (03): : 197 - 205