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- [5] SPACE AGE MILL FOR REFRACTORY METALS INDUSTRIAL AND ENGINEERING CHEMISTRY, 1960, 52 (09): : A28 - A29
- [6] REFRACTORY-METALS IN THE SPACE AGE ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1985, 190 (SEP): : 19 - INE
- [7] METALS FOR SPACE AGE - PLANSEE PROCEEDINGS 1964 JOURNAL OF THE LESS-COMMON METALS, 1966, 10 (01): : 75 - &