@congreso_internacional{422,
  author = {Miguel Mateo Badaracco and Luis Martínez},
  title = {An Intelligent Tutoring System Architecture for Competency-Based Learning},
  year = {2011},
  volume = {6882},
  pages = {124-133},
  month = {September 12-14th},
  publisher = {15th International Conference in Knowledge-Based and Intelligent Information and Engineering Systems (KES 2011)},
  address = {University of Kaiserslautern, Kaiserslautern (Germany)},
}