@article{IR,
      recid = {3806},
      author = {Rollins, Eugene J.},
      title = {Abstract syntax in theory and practice},
      address = {1982},
      number = {IR},
      abstract = {cse-82-004},
      url = {http://digitalcollections.ohsu.edu/record/3806},
      doi = {https://doi.org/10.6083/bn999711b},
}