1. American Railway Engineering Association (AREA). (1960). “Summary of tests on steel girder spans.” Proc. Am Railway Engrg. Assn. Vol. 61 Committee 30 Washington D.C.
2. Ang A. H.S. and Tang W. H. (1984). Probability concepts in enginering planning and design: Vol. II—basic principles . John Wiley & Sons Inc. New York N.Y.
3. Downing S. D. and Socie D. F. (1982). “Simple rainflow counting algorithms.” Int. J. Fatigue (Jan.) 31–40.
4. Fisher J. W. Nussabaumer A. Keating P. B. and Yen B. T. (1993). “Resistance of welded bridge members under variable amplitude long-life fatigue loading.” Transp. Res. Board NCHRP Rep. No. 354 Nat. Res. Council Washington D.C.
5. Fisher J. W. Yen B. T. Wang D. and Mann J. E. (1987). “Fatigue and fracture evaluation for rating riveted bridges.” Transp. Res. Board NCHRP Rep. No. 302 Nat. Res. Council Washington D.C.