1. Standard Method of Test for Plane Strain Fracture Toughness of Metallic Materials, E399-74, American Society for Testing and Materials.
2. Methods of Test for Plane Strain Fracture Toughness (KIC) of Metallic Materials, BS5447: 1977, British Standards Institution.
3. W. F.BrownJr., and J. E.Srawley, Plane Strain Crack Toughness Testing of High Strength Metallic Materials, STP 410, American Society for Testing and Materials, Philadelphia (1966).
4. W. F.BrownJr., and J. E.Srawley, in Review of Developments in Plane Strain Fracture Toughness Testing, STP 463, American Society for Testing and Materials, Philadelphia (1970) 216?248.
5. E. F.Walker and M. J.May, cited by M. J. May, in Review of Developments in Plane Strain Fracture Toughness Testing, STP 463, American Society for Testing and Materials, Philadelphia (1970) 41?62.