@article{IR,
      author = {Keller, Tom},
      url = {http://digitalcollections.ohsu.edu/record/3878},
      title = {The one-to-one match operator of the volcano query  processing system},
      abstract = {cse-89-009},
      number = {IR},
      doi = {https://doi.org/10.6083/dj52w513w},
      recid = {3878},
      address = {1989},
}