@inproceedings{ijcai1999p3,
  title     = {UPML: A Framework for Knowledge System Reuse},
  author    = {Fensel, Dieter and Benjamins, V. Richard and Motta, Enrico and Wielinga, Bob J.},
  booktitle = {Proceedings of the Sixteenth International Joint Conference on
               Artificial Intelligence, {IJCAI-99}},
  publisher = {International Joint Conferences on Artificial Intelligence},
  editor    = {Thomas Dean},
  year      = {1999},
  url       = {https://ijcai.org/proceedings/1999/3},
}