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- [1] PREPARATION OF HIGH-PURITY ZINC BY VACUUM DISTILLATION METALLURGIA ITALIANA, 1970, 62 (01): : 26 - &
- [3] PREPARATION OF HIGH-PURITY CADMIUM AND ZINC BY VACUUM-DISTILLATION RUSSIAN METALLURGY, 1973, (02): : 13 - 16
- [6] Preparation of high purity gallium TRANSACTIONS OF THE INDIAN INSTITUTE OF METALS, 1998, 51 (05): : 441 - 443
- [8] PREPARATION OF SULFUR OF HIGH PURITY JOURNAL OF RESEARCH OF THE NATIONAL BUREAU OF STANDARDS SECTION A-PHYSICS AND CHEMISTRY, 1960, 64 (04): : 355 - 358
- [9] Preparation of high purity erbium Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering, 2015, 44 (06): : 1509 - 1512