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4. V. V. Panasyuk, A. E. Andreikiv, and V. S. Kharin, “Theoretical analysis of crack growth in metals under the action of hydrogen,”Fiz.-Khim. Mekh. Mater.,17, No. 4, 61–75 (1981).
5. A. V. Fishgoit and B. A. Kolachev, “Crack propagation in a hydrogenated metal under plane strain,”Fiz.-Khim. Mekh. Mater.,17, No. 4, 76–81 (1981).