Sergio Tessaris Enrico Franconi Thomas Eiter Claudio Gutierrez Siegfried Handschuh Marie-Christine Rousset Renate A. Schmidt Reasoning Web. Semantic Technologies for Information Systems, 5th International Summer School 2009, Brixen-Bressanone, Italy, August 30 - September 4, 2009, Tutorial Lectures 5689 2009 http://dx.doi.org/10.1007/978-3-642-03754-2 978-3-642-03753-5 Reasoning Web Lecture Notes in Computer Science Springer db/conf/rweb/rweb2009.html