Reihe Contributions to EconomicsKatrin Luger ×Physica × Chinese RailwaysReform and Efficiency Improvement OpportunitiesKatrin LugerPhysicaSoftcover2010 Chinese RailwaysReform and Efficiency Improvement OpportunitiesKatrin LugerPhysicaHardcover2008 Chinese RailwaysReform and Efficiency Improvement OpportunitiesKatrin LugerPhysicaeBook2008