@inproceedings{ijcai1975p62,
  title     = {A Student-Oriented Natural Language Environment For Learning LISP},
  author    = {Hart, R. and Koffman, Elliot B.},
  booktitle = {Proceedings of the Fourth International Joint Conference on
               Artificial Intelligence, {IJCAI-75}},
  publisher = {International Joint Conferences on Artificial Intelligence},
  editor    = {Patrick Winston and Carl Hewitt},
  pages     = {391--395},
  year      = {1975},
  note      = {Natural Language Understanding},
  url       = {https://ijcai.org/proceedings/1975/62},
}