00321nam a2200085Ia 4500008004100000245006200041245003000103260000900133856009300142160523s9999    xx            000 0 und d  aInfrastructure Design, Signalling and Security in Railway  cEdited by Xavier Perpinya  c2012  uhttp://www.intechopen.com/books/infrastructure-design-signalling-and-security-in-railway