4Zandman,F.,Render,S.,Dally,J.W.,Photoelastic Coatings,Published Jointly by the Iowa State University Press and Society for Experimental Stress Analysis, First Edition,1977.
5G.V.Guinea,J.Y.Pastor,et al.Stress intensity Factor,compliance and CMOD for a general three-point beam.International Journal of Fracture,(39),1998,103—116.
