1. Automatic assessment of open ended questions with a bleu-inspired algorithm and shallow NLP;Alfonseca;Lecture Notes in Computer Science,2004
2. R. Amorı´n, M. Lama, E. Sánchez, A. Riera, X. Vila, A learning design ontology based on the ims specification, in: Proc. of the UNFOLD-PROLEARN Joint Workshop, 1995, pp. 203–225.
3. A Semantic Web Primer;Antoniou,2004
4. The Semantic Web;Berners-Lee;Scientific American,2001
5. A computational model for developing semantic web-based educational systems;Bittencourt;Knowledge-Based Systems,2009