%0 Journal Article %T Toward the professionalization of sponsorship management in voluntary sports clubs: a comprehensive analysis of components and their specifications %A Schulz, Luc %A Keller-Meier, Romano %A Lang, Grazia %A Nagel, Siegfried %A Stieger, Raphael %A Schlesinger, Torsten %J International Journal of Sports Marketing and Sponsorship %V 25 %N 5 %P 1126-1146 %@ 1464-6668 %D 2024-09-25 %I Emerald Group Publishing Limited %~ DeepDyve