1. Crack formation and stress concentration effects in direct stress fatigue;Frost;Part I—The Engineer,1955
2. Crack formation and stress concentration effects in direct stress fatigue;Frost;Part II-The Engineer,1955
3. Stress intensity factors of cracks emanating from semi-elliptical side notches in plates;Yamamoto;Int. J. Fracture,1974
4. Theory of Notch Stresses;Neuber,1946