1. S.W. Leykauf G, Lechner B, Trends in the use of slab track/ballastless tracks, RTR Spec. Issue. (2006).
2. Track compendium : formation, permanent way, maintenance, economics, Hambg;Lichtberger;Eurailpress.,2005
3. E.A.P.A. Eapa, Asphalt in Railway Tracks, EAPA Position Pap. (2003) 11.
4. Long-term performance of asphalt underlayment trackbeds for special trackbed applications;Rose;Am. Railw. Eng. Maint. W. Assoc.,2006
5. Performance-Based Design Method for Railway Asphalt Roadbed;Momoya;Doboku Gakkai Ronbunshuu E.,2007