Collaboration and Technology 19th International Conference, CRIWG 2013, Wellington, New Zealand, October 30 – November 1, 2013, Proceedings - Antunes, Pedro; Gerosa, Marco Aurélio; Sylvester, Allan; Vassileva, Julita; Vreede, Gert-Jan de (Springer Berlin Heidelberg : Imprint: Springer, 2013)