Book chapters

• Alfredo Gabaldon, Programming hierarchical task networks in the situation calculus, in: Gerhard Lakemayer (eds), Knowing, Reasoning, and Acting: Essays in Honour of Hector J. Levesque, College Publications, ISBN 978-1-84890-044-8, 2011.
• José Júlio Alferes, Alfredo Gabaldon and João Alexandre Leite, Evolving Logic Programs with Temporal Operators, in: Marcello Balduccini and Tran Cao Son (eds), Logic Programming, Knowledge Representation, and Nonmonotonic Reasoning - Essays Dedicated to Michael Gelfond on the Occasion of His 65th Birthday, Lecture Notes in Computer Science, Springer, Vol. 6565, ISBN 978-3-642-20831-7, ISSN 1861-2059, Pag. 193-212, 2011.