@article{ETD,
      school = {M.S.},
      author = {Lau, Chi-Leung (Andy) and },
      url = {http://digitalcollections.ohsu.edu/record/71},
      title = {A hierarchical graphics composition model},
      publisher = {Oregon Graduate Center},
      number = {ETD},
      doi = {https://doi.org/10.6083/M4T43R0W},
      recid = {71},
      address = {1984},
}