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Sih, G. C.; Paris, P. C. & Erdogan, F. (1962), "Crack-tip stress intensity factors for the plane extension and plate bending problem", Journal of Applied Mechanics, 29 (2): 306–312, Bibcode:1962JAM....29..306S, doi:10.1115/1.3640546
Sih, G. C.; Paris, P. C. & Erdogan, F. (1962), "Crack-tip stress intensity factors for the plane extension and plate bending problem", Journal of Applied Mechanics, 29 (2): 306–312, Bibcode:1962JAM....29..306S, doi:10.1115/1.3640546