He was executive director of Community of European Railway and Infrastructure Companies ( CER ) from 2002 until 2011 .
Johannes Ludewig ( born 6 July 1945 , in Hamburg ) is a German manager and former secretary of state .
Johannes Ludewig was manager   of Community of European Railway and Infrastructure Companies ( CER ) from 2002 until 2011 .
Johannes Ludewig ( born 6 July 1945 , in Hamburg ) is a German manager and former secretary of state .