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All-Union Scientific-Research Institute of the State Patent Examination (VNIIGPE). Translated from Metallurg, No. 4, pp. 41–42, April, 1990.
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Kitaiskii, V. Innovations. Metallurgist 34, 81–83 (1990). https://doi.org/10.1007/BF00748335
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DOI: https://doi.org/10.1007/BF00748335