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All-Union Scientific Research Institute of the State Patent Examination. Translated from Metallurg, No. 3, pp. 34–35, March, 1997.
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Kitaiskii, V. Innovations. Metallurgist 41, 102–103 (1997). https://doi.org/10.1007/BF02767877
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DOI: https://doi.org/10.1007/BF02767877