@article{ETD,
      school = {M.S.},
      author = {Chang, David F. and },
      url = {http://digitalcollections.ohsu.edu/record/23},
      title = {Direct detection of digital optical communication through  the atmosphere},
      publisher = {Oregon Graduate Center},
      number = {ETD},
      doi = {https://doi.org/10.6083/M40Z715S},
      recid = {23},
      address = {1974},
}