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Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 5, pp. 2–4, May, 1979.
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Karpov, L.P. Increasing the efficiency of vacuum heat treatments. Met Sci Heat Treat 21, 329–331 (1979). https://doi.org/10.1007/BF00780763
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DOI: https://doi.org/10.1007/BF00780763