1. Techniques of Finite Elements;IRONS,1980
2. Calculation of Stress Intensity Factors At Crack Tips Using Special Finite Elements;BLACKBURN,1972
3. Crack Tip Finite Elements are Unnecessary;HENSHELL;Int. J. Numer. Meth. Eng.,1975
4. Application of Quadratic Isoparametric Finite Elements in Linear Fracture Mechanics;BARSOUM;Int. J. Fract.,1974
5. The BERSAFE System. A Handbook of Finite Element Systems;HELLEN,1981