D. Kanejiya, A. Kumar, und S. Prasad. Proceedings of the HLT-NAACL 03 workshop on Building educational applications using natural language processing - Volume 2, Seite 53--60. Stroudsburg, PA, USA, Association for Computational Linguistics, (2003)
M. Mohler, und R. Mihalcea. Proceedings of the 12th Conference of the European Chapter of the Association for Computational Linguistics, Seite 567--575. Stroudsburg, PA, USA, Association for Computational Linguistics, (2009)
T. Kakkonen, N. Myller, J. Timonen, und E. Sutinen. EdAppsNLP 05: Proceedings of the second workshop on Building Educational Applications Using NLP, Seite 29--36. Morristown, NJ, USA, Association for Computational Linguistics, (2005)