1. Rolling-sliding wear damage in rail and tyre steels;Bolton;Wear,1984
2. Abnützungsmaschine für Metalle;Amsler;Z. VDI,1922
3. Surface damage phenomena in rails;Clayton,1982
4. Symp. on Rail Corrugation Problems, Technical University of Berlin,1983
5. A. N. Richards, unpublished results (British Rail Technical Centre, Derby).