Landessportbund Nordrhein-Westfalen e. V. Julkaistu 2009 “...management and organisation of sport...”
Landessportbund Nordrhein-Westfalen e. V. Julkaistu 2010 “...management and organisation of sport...”
Paul, C. Julkaistu 2004 “...management and organisation of sport...”
Adolphsen, J. Julkaistu 2003 “...management and organisation of sport...”
Ritter, A. Julkaistu 2003 “...management and organisation of sport...”
Krebs, H.-D. Julkaistu 1994 “...management and organisation of sport...”