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3. “The Determination of Absorbed Specific Fracture Energy”, Hungarian StandardMSz 4929-76 ( English Translation), Institute of Fracture and Solid Mechanics Publication, Lehigh University (1978).
4. Gillemot, L.F., “Criterion of Crack Initiation and Spreading”, Journal of Engineering Fracture Mechanics, 8, p. 239 (1976).
5. Czoboly, E., Havas, I. and Gillemot, F., “The Absorbed Specific Energy Till Fracture as a Measure of the Toughness of Metals”, Proc. of Int. Symp. on Absorbed Specific Energy and/or Strain Energy Density Criterion, edited by G.C. Sih, E. Czoboly and F. Gillemot, Sijthoff and Noordhoff International Publisher, The Netherlands, p. 107 (1981).