Article Title,Year,Volume,Issue,Page Range,Author Requirements on Safety Concepts for Railway Tunnels,2006,130,9,392-400,Kruse The fractured wheel tire of Eschede: technical background - - - Der Radreifenbruch von Eschede - technische Hintergründe,2004,128,6-7,258-275,Esslinger Cityrunner Linz: 100 % lowfloor tram with wheel-set-bogies,2002,126,SPEC.,189-199,Petz