@article{IR,
      author = {Wolfe, Michael},
      url = {http://digitalcollections.ohsu.edu/record/3956},
      title = {Flow graph anomalies: whats in a loop?},
      abstract = {cse-92-012},
      number = {IR},
      doi = {https://doi.org/10.6083/c821gk031},
      recid = {3956},
      address = {1991},
}