International Plansee Society for Powder Metallurgy & International Tungsten Industry Association. (1989). International journal of refractory metals & hard materials. Elsevier Ltd..
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Chicago-čujuhus (17. p.)
International Plansee Society for Powder Metallurgy juo International Tungsten Industry Association. International Journal of Refractory Metals & Hard Materials. Shrewsbury, England: Elsevier Ltd., 1989.
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MLA-čujuhus (9. p.)
International Plansee Society for Powder Metallurgy juo International Tungsten Industry Association. International Journal of Refractory Metals & Hard Materials. Elsevier Ltd., 1989.
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