1. Fracture Mechanics;Ewalds,1985
2. The propagation of a brittle crack;Broberg;Arkiv fur Fysik,1960
3. Wave Propagation in Elastic Solids;Achenbach,1973
4. Dynamic Fracture Mechanics;Freund,1993
5. Theory of acoustoelasticity and acoustoplasticity;Pao,1987