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Translated from Steklo i Keramika, No. 9, pp. 24–26, September, 1973.
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Knyazev, Y.A., Ampleev, V.A., Korobkin, N.P. et al. Contactless system of automatic change of flame direction. Glass Ceram 30, 620–622 (1973). https://doi.org/10.1007/BF00676059
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DOI: https://doi.org/10.1007/BF00676059