@article{ETD,
      school = {M.S.},
      author = {Campbell, James N. and },
      url = {http://digitalcollections.ohsu.edu/record/7974},
      title = {Data-flow analysis of software change},
      publisher = {Oregon Health and Science University},
      number = {ETD},
      doi = {https://doi.org/10.6083/M4DR2SMG},
      recid = {7974},
      address = {1990-11-01},
}