J. Baget, Simple Conceptual Graphs Revisited: Hypergraphs and Conjunctive Types for Efficient Projection Algorithms, Proc. of ICCS'03, 2003.
DOI : 10.1007/978-3-540-45091-7_16

URL : https://hal.archives-ouvertes.fr/hal-00906599

J. F. Baget, RDF Entailment as a Graph Homomorphism, Proc. of ISWC'05, 2005.
DOI : 10.1007/11574620_9

URL : https://hal.archives-ouvertes.fr/hal-00922476

J. Baget and M. Mugnier, The Complexity of Rules and Constraints, JAIR, vol.16, pp.425-465, 2002.
URL : https://hal.archives-ouvertes.fr/lirmm-00268460

M. Chein and M. Mugnier, Graph-based Knowledge Representation: Computational Foundations of Conceptual Graphs, 2009.
URL : https://hal.archives-ouvertes.fr/lirmm-00355336

M. Chein and M. Mugnier, Conceptual Graphs: Fundamental Notions. Revue d, Intelligence Artificielle, vol.6, issue.4, pp.365-406, 1992.

M. Chein and M. Mugnier, Concept Types and Coreference in Simple Conceptual Graphs, LNAI, vol.3127, pp.303-318, 2004.
DOI : 10.1007/978-3-540-27769-9_20

O. Corby, R. Dieng, and C. Hebert, A Conceptual Graph Model for W3C RDF, Proceedings of ICCS00, volume 1867 of LNAI, 2000.

M. Mugnier, Knowledge Representation and Reasonings Based on Graph Homomorphism, Proc. ICCS'00, volume 1867 of LNAI, pp.172-192, 2000.
DOI : 10.1007/10722280_12

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