Michael Bauland, Philippe Chapdelaine, Nadia Creignou, Miki Hermann, Heribert Vollmer. An Algebraic Approach to the Complexity of Generalized Conjunctive Queries. In SAT 2004 - The Seventh International Conference on Theory and Applications of Satisfiability Testing, 10-13 May 2004, Vancouver, BC, Canada, Online Proceedings. 2004. [doi]
Abstract is missing.