1. Code of Federal Regulations, Part 213, Track Safety Standards, Subpart D — Track Structures, Section 213.113, Defective Rails.
2. Investigation of rail bolt hole cracks;Mayville;Report to Department of Transportation, Federal Railroad Administration, Contract DTRS-57-83-C-0078,1987
3. Fracture mechanics analysis of a rail-end bolt hole crack;Mayville;Theor. Appl. Fracture Mech.,1984
4. Stresses in Railroad Track — The Talbot Reports,1980
5. ABAQUS, Hibbitt, Karlsson & Sorensen, Inc., 1080 Main St., Pawtucket, R.I. 03860.