• Voluntary Patent Pledges: A Postcard From Germany, in Contreras, Jorge (Ed.), Patent Pledges: Global Perspectives on Patent Law’s Private Ordering Frontier (forthcoming: Edward Elgar Publishing Limited 2016), Catharina Maracke & Axel Metzger.
  • Playing Nice With Patents: Do Voluntary Non Aggression Pledges Provide A Sound Basis For Innovation? North Carolina Journal of Law and Technology, Vol.17, Issue 3: 2016, Catharina Maracke & Axel Metzger.
  • Das Urheberwahrnehmungsgesetz von 1965 in Dreier, Thomas / Hilty, Reto M. (Eds.), Festschrift 50 Jahre Deutsches Urheberrecht, Beck Verlag 2015, Catharina Maracke.



  • An Open Web. Christopher Adams, Michelle Thorne, Jon Phillips, Mick Fuzz, Alejandra Perez Nuñez, Bassel Safadi, Aleksandar Erkalovic, Barry Threw. January 21, 2011.
  • Cultural flat rate, digital libraries, Creative Commons – What role for collecting societies in the 21st century?, GRUR Int. 2010, 671 (Heft 8/9).
  • Intelligent Multimedia: Sharing Creative Works in a Digital World, ed. together with Daniele Bourcier, Melanie Dulong de Rosnay, and Pompeu Casanovas (European Press Academic Publishing in Florence, Italy 2010).
  • Creative Commons International – The International License Porting Project, JIPITEC Vol. 1, 2010
  • Collaborative Futures, Aleksandar Erkalovic, Adam Hyde, Mike Linksvayer, Michael Mandiberg, Marta Peirano, Sissu Tarka, Astra Taylor, Alan Toner, Mushon Zer-Aviv. FLOSSManuals, 2010.


  • Free Culture in Relation to Software Freedom, Free Beer, Ed. Stian Rødven Eide. FSCONS, 2009.
  • ccREL: The Creative Commons Rights Expression Language, Ben Adida, Hal Abelson, Mike Linksvayer, Nathan Yergler. W3C Member Submission, 2008.
  • Freesouls: Captured and Released. Joi Ito (Author), Christopher Adams and Sophie Chiang (Editor and Publisher). September 2008.
  • Creative Commons – ein rechtliches Laienwerkzeug in der digitalen Welt, (“Creative Com-mons – a legal tool for everyone”) co-authored with John Weitzmann, OEKOM, Berlin 2008.
  • A Delimitation of Design and Copyright, Institute of Intellectual Property, Tokyo 2006.
  • Die Entstehung des Urheberrechtsgesetzes von 1965, (“The origin of the German Copyright Act of 1965”), Duncker&Humblot, Berlin 2003.