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Translated from Poroshkovaya Metallurgiya, No. 5(305), pp. 42–44, May, 1988.
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Gural'nik, N.I., Evstifeev, V.V. & Imangulova, N.G. Thermionic properties of tungsten with additions of oxides of rare-earth elements. Powder Metall Met Ceram 27, 370–372 (1988). https://doi.org/10.1007/BF00797682
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DOI: https://doi.org/10.1007/BF00797682