1. G.R. Irwin et al., ?A Photoelastie Study of the Dynamic Fracture Behavior of Homalite 100,? U.S. NRC Report NUREG-75?107, University of Maryland (1975).
2. G.R. Irwin et al., ?A Photoelastic Characterization of Dynamic Fracture,? U.S. NRC Report NUREG-0072, University of Maryland (1976).
3. G.R. Irwin et al., ?Photoelastic Study of Crack Propagation and Arrest,? U.S. NRC Report NUREG/CR-0342, University of Maryland (1977).
4. G.R. Irwin et al., ?Photoelastic Studies of Crack Propagation and Arrest in Polymers and 4340 Steel,? U.S. NRC Report NUREG/CR-0542, University of Maryland (1978).
5. J.W. Dally, Experimental Mechanics 19, No. 10 (1979) 349?361.