@article{ETD,
      school = {Ph.D.},
      author = {Henry, Ronald C. and },
      url = {http://digitalcollections.ohsu.edu/record/38},
      title = {A factor model of urban aerosol pollution a new method of  source identification},
      publisher = {Oregon Graduate Center},
      number = {ETD},
      doi = {https://doi.org/10.6083/M42R3PMH},
      recid = {38},
      address = {1977},
}