1. Stress intensity factors at the tips of a star-shaped contour in an infinite tensile sheet;Andersson;J. Mech. Phys. Solids,1969
2. Erratum
3. Strain-energy-release rate for a crack under combined Mode I and Mode II;Hussain;ASTM-STP,1974
4. On the problem of crack extension in brittle solids under general loading;Palaniswamy;Calif. Inst. Tech. Rep. SM 74-8,1974
5. also in Mechanics Today (Edited by S. Nemat-Nasser), Vol. 4. Pergamon Press, New York.