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- [7] THE SPECTROCHEMICAL METHOD OF ANALYSIS OF COBALT, COPPER, TIN, AND ZINC IMPURITIES IN HIGH-PURITY NICKEL INDUSTRIAL LABORATORY, 1959, 25 (08): : 986 - 989
- [9] ANALYSIS OF HIGH-PURITY IRON PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE, 1972, 10 (01): : K69 - +
- [10] IMPORTANCE OF THE IRON CONTENT OF HIGH-PURITY ALUMINUM TRANSACTIONS OF THE AMERICAN INSTITUTE OF MINING AND METALLURGICAL ENGINEERS, 1953, 197 (06): : 821 - 822