Iyad Rahwan and Guillermo R. Simari
Software Announcement: Tom 2.7
Pierre-Etienne Moreau
Loria, Inria, France
Software Announcement: Potassco Labs
Torsten Schaub
University of Potsdam, Germany
Symbolic Analysis as a Basis for Program Comprehension
Semantic Web Language Layering with Ontologies, Rules, and Meta-Modeling
ASPeRiX: a First Order Rule-Based ASP Solver
Claire Lefevre and Pascal Nicolas
LERIA, University of Angers, France
Communicated by: Enrico Pontelli