Open Source Software: New Horizons : 6th International IFIP WG 2.13 Conference on Open Source Systems, OSS 2010, Notre Dame, IN, USA, May 30 - June 2, 2010, Proceedings - Pär Ågerfalk, Cornelia Boldyreff, Jesús M. González-Barahona, Gregory R. Madey, John Noll ((IFIP Advances in Information and Communication Technology))