Open Source Ecosystems: Diverse Communities Interacting 5th IFIP WG 2.13 International Conference on Open Source Systems, OSS 2009, Skövde, Sweden, June 3-6, 2009. Proceedings - Boldyreff, Cornelia; Crowston, Kevin; Lundell, Björn; Wasserman, Anthony I. (Springer Berlin Heidelberg : Imprint: Springer, 2009)