Wojciech Kazana, Luc Segoufin. Enumeration of first-order queries on classes of structures with bounded expansion. In Richard Hull, Wenfei Fan, editors, Proceedings of the 32nd ACM SIGMOD-SIGACT-SIGART Symposium on Principles of Database Systems, PODS 2013, New York, NY, USA - June 22 - 27, 2013. pages 297-308, ACM, 2013. [doi]
Abstract is missing.