U. Bretschneider, and J. Leimeister. Open Tourism: Open Innovation, Crowdsourcing and Co-Creation Challenging the Tourism Industry, Springer Berlin Heidelberg, (2016)
M. Gierczak, U. Bretschneider, P. Haas, I. Blohm, and J. Leimeister. Crowdfunding in Europe – State of The Art in Theory And Practice; FGF Studies in Small Business and Entrepreneurship, Springer Science + Business Media, Cham, (2015)
M. Hartmann, U. Bretschneider, A. Prinz, and J. Leimeister. Informatik 2012 - Game IT: Der Einsatz von IT-basierten Spielen und Spielmechaniken im organisationalen Kontext, Braunschweig, Germany, (2012)335.
M. Huber, U. Bretschneider, J. Leimeister, and H. Krcmar. International Reports on Socio-Informatics - Open Design Spaces Supporting User Innovation. International Workshop on Open Design Spaces (ODS) 2009, Bonn, Germany, (2009)140 (24-09).
A. Hupe, U. Bretschneider, T. Trostmann, and L. Stubbemann. 35th Bled eConference Digital Restructuring and Human (Re)action, page 233-248. Maribor, Slovenia, University of Maribor, University of Maribor Press, (June 2022)
M. Rese, and U. Bretschneider. Proceedings Paderborner Frühjahrstagung: Supply Chain Management in der Automobil- und Zulieferindustrie, page 129-138. Paderborn, Germany, (2004)