@inproceedings{ijcai1997p51,
  title     = {Task Ontology Makes It Easier To Use Authoring Tools},
  author    = {Ikeda, Mitsuru and Seta, Kazuhisa and Mizoguchi, Riichiro},
  booktitle = {Proceedings of the Fifteenth International Joint Conference on
               Artificial Intelligence, {IJCAI-97}},
  publisher = {International Joint Conferences on Artificial Intelligence},
  editor    = {Martha E. Pollack},
  pages     = {342--350},
  year      = {1997},
  note      = {Computer-aided Education},
  url       = {https://ijcai.org/proceedings/1997/51},
}