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2. H. Conrad, J. Iron and Steel Inst., 198, No. 4: 364 (1961).
3. Yu. V. Mil'man and V. I. Trefilov, O Fizicheskoy Prirode Temperaturnoy Zavisimosti Predela Tekuchesti. Mekhanizm Razrusheniya Metallov [Physical Nature of the Temperature Dependence of Yield Stress. Metal Fracture Mechanism] (Kyiv: Naukova Dumka: 1966), p. 59 (in Russian).
4. GOST 9454-78. Metally. Metod Ispytaniya na Udarnyy Izgib pri Ponizhennykh, Komnatnoy i Povyshennykh Temperaturakh [Metals. Impact Bending Test Method at Low, Room and Elevated Temperatures] (Moscow: Izdatel'stvo Standartov: 1978) (in Russian).
5. Influence of Strength on Susceptibility to Embrittlement of Steels under Action of Stress Raisers