1. Wenger, E.: Artificial intelligence and tutoring systems. Morgan Kaufmann Publishers, Inc, San Francisco (1987)
2. Badaracco, M., Martínez, L.: Design of Architecture for Intelligent Tutor System Based on Competencies (ITS-C). XVI Argentine Congress on Computer Science. Buenos Aires (2010)
3. Zalba, E.a.G., N.: An approach to education based on competencies, http://www.me.gov.ar/spu/guia_tematica/CPRES/cpres-comision.html
4. Catalano, A., Avolio de Cols, S., Sladogna, M.: Curriculum design based on standards of occupational competence. In: Oit, C. (ed.) Concepts and methodological guidelines. CINTERFOR, Buenos Aires (2004)
5. Europe TUNING, E.S., http://tuning.unideusto.org/tuningeu/images/stories/Temp.late/General_Brochure_Spanish_version.pdf