1. W.E. Anderson 1969 An Engineer Views Brittle Fracture History
2. ASTM 1997a Standard Methods for Notched Bar Impact Testing of Metallic Materials E-23 Annual Book of ASTM Standards American Society for Testing and Materials Philadelphia
3. ASTM 1997b Annual Book of ASTM Standards American Society for Testing and Materials Philadelphia
4. ASTM 1997c Standard Methods for Plane-Strain Fracture Toughness of Metallic Materials E-399 Annual Book of ASTM Standards 408 438 American Society for Testing and Materials Philadelphia
5. ASTM 1997d Standard Practice for R-Curve Determination E-561-94 Annual Book of ASTM Standards 489 501 American Society for Testing and Materials Philadelphia