1. Final Report of the Cleanness and Fatigue Defects Working group of the VDEh-Rail Committee,1982
2. Studies of basic Bessemer rail steel;Schmedders;Archiv f. d. Eisenhüttenwesen,1966
3. Specially deoxidized rail steels with high resistance to fatigue defects;Weber;Eisenbahntechnische Rundschau,1987
4. Improved fatigue life of rails by metallurgical cleanliness;Steele,1987
5. A metallographic study of fatigue defects in rails;Skinner,1981