D. Albert and J. Lukas, Knowledge Spaces: Theories, Empirical Research, and Applications, 1999.

L. W. Anderson and D. R. Krathwohl, A Taxonomy for Learning, Teaching, and Assessing: A Revision of Bloom's Taxonomy of Educational Objectives, 2001.

S. Bloehdorn, P. Cimiano, and A. Hotho, Learning Ontologies to Improve Text Clustering and Classification, 2006.
DOI : 10.1007/3-540-31314-1_40

URL : http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.640.2212

B. S. Bloom, Taxonomy of Educational Objectives, the classification of educational goals ? Handbook I: Cognitive Domain, 1956.

J. W. Coffey, R. R. Hoffman, A. J. Cañas, and K. M. Ford, A Concept Map-Based Knowledge Modeling Approach to Expert Knowledge Sharing, The IASTED International Conference on Information and Knowledge Sharing (IKS '02, 2002.

I. Görgün, A. Türker, Y. Ozan, and J. Heller, Learner Modeling to Facilitate Personalized E- Learning Experience, Cognition and Exploratory Learning in Digital Age 2005 (CELDA'05), pp.231-237, 2005.

C. Gütl and V. M. García-barrios, Smart Multimedia Meeting Information Retrieval for Teaching and Learning Activities, Society for Information Technology and Teacher Education, p.6, 2006.

J. Heller, C. Steiner, C. Hockemeyer, and D. Albert, Competence-Based Knowledge Structures for Personalised Learning, International Journal on E-Learning, vol.5, issue.1, pp.75-88, 2006.
URL : https://hal.archives-ouvertes.fr/hal-00190482

K. Korossy, Extending the theory of knowledge spaces: A competence-performance approach, Zeitschrift für Psychologie, pp.53-82, 1999.

T. Ley, Organizational Competency Management ? A Competence Performance Approach, 2006.

T. K. Landauer, P. W. Foltz, and D. Laham, An introduction to latent semantic analysis, Discourse Processes, 1998.
DOI : 10.1080/01638539809545030

A. Maedche and S. Staab, Ontology learning for the Semantic Web, IEEE Intelligent Systems, vol.16, issue.2, pp.72-79, 2001.
DOI : 10.1109/5254.920602

J. F. Sowa, Conceptual graphs as a universal knowledge representation, Semantic Networks in Articial Intelligence, pp.75-93, 1992.
DOI : 10.1016/0898-1221(92)90137-7