@inproceedings{ijcai1975p52,
  title     = {A Problem Reduction Model for Non-Independent Subproblems},
  author    = {Levi, Giorgio and Sirovich, Franco},
  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     = {340--343},
  year      = {1975},
  note      = {Search Techniques},
  url       = {https://ijcai.org/proceedings/1975/52},
}