@misc{W2103103282,
  author = {B. Chandrasekaran and John R. Josephson and V. Richard Benjamins},
  title = {What are ontologies, and why do we need them?},
  year = {1999},
  howpublished = {IEEE Intelligent Systems and their Applications},
  doi = {https://doi.org/10.1109/5254.747902}
}