New Directions for Intelligent Tutoring Systems Proceedings of the NATO Advanced Research Workshop on New Directions for Intelligent Tutoring Systems, held in Sintra, Portugal, 6–10 October, 1990 Costa Ernesto Heftet / 2011 / Engelsk
Progress in Artificial Intelligence 8th Portuguese Conference on Artificial Intelligence, EPIA '97, Coimbra, Portugal, October 6-9, 1997. Proceedings Costa Ernesto Heftet / 1997 / Engelsk
Progress in Artificial Intelligence 17th Portuguese Conference on Artificial Intelligence, EPIA 2015, Coimbra, Portugal, September 8-11, 2015. Proceedings Pereira, Francisco Heftet / 2015 / Engelsk
