1. ESIS P2-92 1992 ESIS procedure for determining the fracture behaviour of materials
2. Geometry and size effects on J-R and δ-R curves under plane stress conditions;Hellman;ASTM STP,1984
3. E. Lucon 1992 Cylindrical specimens for evaluating a service component's fracture toughness properties 627 634
4. ASTM Standards 1992 E561-92a, Standard practice for R -curve determination Annual Book of ASTM Standards 597 608
5. ASTM Standards 1990 E1152-87, Standard test method for determining J-R curves Annual Book of ASTM Standards 812 822