Loris Penserini Pavlos Peppas Anna Perini STAIRS 2006 - Proceedings of the Third Starting AI Researchers' Symposium, Riva del Garda, Trentino, Italy, 2006 142 Frontiers in Artificial Intelligence and Applications 2006 978-1-58603-645-4 IOS Press STAIRS db/conf/stairs/stairs2006.html