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Translated from Steklo i Keramika, No. 8, pp. 33–34, August, 1974.
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Pyatyari, G.F. An important and responsible service. Glass Ceram 31, 579–580 (1974). https://doi.org/10.1007/BF00676814
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DOI: https://doi.org/10.1007/BF00676814