Railway applications - Track - Track alignment design parameters - Track gauges 1435 mm and wider - Part 2: Switches and crossings and comparable alignment design situations with abrupt changes of curvature; German version EN 13803-2:2006+A1:2009— 48 стр.
Railway applications. Current collection systems. Technical criteria for the interaction between pantograph and overhead line (to achieve free access)— 40 стр.