1. ASTM Standard Methods of Tension Testing of Metallic Materials;E8-68, ASTM Standards,1969
2. ASTM Proposed Method of Test for Plane-Strain Fracture Toughness of Metallic Materials,1969
3. Fracture of Structure Aluminum Alloys;Kaufman,1969
4. Metallic Materials and Elements for Aerospace Vehicle Structures,1968