1. F. Erdogan and G. C. Sih,Journal of Basic Engineering 85D (1963) 519?527.
2. G. C. Sih,International Journal of Fracture 10 (1974) 305?321.
3. P. S. Theocaris and N. P. Andrianopoulos,Engineering Fracture Mechanics, (to appear).
4. P. S. Theocaris, G. A. Kardomateas, and N. P. Andrianopoulos,Engineering Fracture Mechanics, (submitted for publication).
5. P. C. Paris and G. C. Sih, inFracture Toughness Testing and its Applications, STP 381, American Society for Testing and Materials, Philadelphia (1984) 30?83.