1. Fracture strength relative to onset and arrest of crack propagation;Irwin,1958
2. Fracture testing of high strength sheet materials under conditions appropriate for stress analysis;Irwin;NRL Rep.,1960
3. Mathematical analysis in the mechanics of fracture;Rice,1968
4. Crack propagation for continuous media;Cherepanov;J. Appl. Math. Mech. (PMM),1967
5. Unstable crack propagation in metals;Wells,1962