J. Baget, M. Croitoru, J. Fortin, and R. Thomopoulos, Default Conceptual Graph Rules: Preliminary Results for an Agronomy Application, Conceptual Structures: Leveraging Semantic Technologies, pp.86-99, 2009.
DOI : 10.1007/978-3-540-73681-3_7
URL : https://hal.archives-ouvertes.fr/lirmm-00410640

R. Reiter, A logic for default reasoning, Artificial Intelligence, vol.13, issue.1-2, pp.81-132, 1980.
DOI : 10.1016/0004-3702(80)90014-4

J. F. Baget, M. Leclère, M. L. Mugnier, and E. Salvat, Extending decidable cases for rules with existential variables, Proceedings of the 21st International Joint Conference on Artificial Intelligence, pp.677-682, 2009.
URL : https://hal.archives-ouvertes.fr/lirmm-00410130

A. Calì, G. Gottlob, and T. Lukasiewicz, A general datalog-based framework for tractable query answering over ontologies, Proceedings of the Twenty-Eigth ACM SIGMOD-SIGACT- SIGART Symposium on Principles of Database Systems (PODS), pp.77-86, 2009.

J. F. Sowa, Conceptual Graphs for a Data Base Interface, IBM Journal of Research and Development, vol.20, issue.4, pp.336-357, 1976.
DOI : 10.1147/rd.204.0336

E. Salvat and M. L. Mugnier, Sound and complete forward and backward chainings of graph rules, ICCS 1996, pp.248-262, 1996.
DOI : 10.1007/3-540-61534-2_16

G. Kerdiles, Saying It with Pictures: a logical landscape of conceptual graphs, 2001.

J. F. Baget, Simple Conceptual Graphs Revisited: Hypergraphs and Conjunctive Types for Efficient Projection Algorithms, ICCS 2003, pp.229-242, 2003.
DOI : 10.1007/978-3-540-45091-7_16
URL : https://hal.archives-ouvertes.fr/hal-00906599

G. Gottlob, N. Leone, and F. Scarcello, A comparison of structural CSP decomposition methods, Artificial Intelligence, vol.124, issue.2, 2000.
DOI : 10.1016/S0004-3702(00)00078-3

J. F. Sowa, On conceptual structures, Artificial Intelligence, vol.34, issue.3, 1984.
DOI : 10.1016/0004-3702(88)90069-0

G. Brewka and T. Eiter, Prioritizing Default Logic, Festschrift on the occasion of Prof.Dr. W. Bibel's, 1999.
DOI : 10.1007/978-94-015-9383-0_3

M. Mugnier and M. Leclere, On querying simple conceptual graphs with negation, Data & Knowledge Engineering, vol.60, issue.3, pp.468-493, 2007.
DOI : 10.1016/j.datak.2006.03.008
URL : https://hal.archives-ouvertes.fr/lirmm-00106650