1. Koci, H. H. and Swenson, C. A. Locomotive wheel-rail loading – a systems approach. Proceedings of the Heavy Haul Railway Conference. Perth. Western Australia
2. Weinstock, H. Wheel climb derailment criteria for evaluation of rail vehicle safety. Proceedings of the American Society of Mechanical Engineers Winter Annual Meeting. New Orleans, LA. pp.1–7. Paper No. 84-WA/RT-1
3. Barbosa, R. S. Safety criterion for railway vehicle derailment. Proceedings of the 8th International Heavy Haul Conference. Rio de Janeiro, Brazil. pp.477–484.