@article{ETD,
      school = {Certificate in Pedodontics},
      author = {Campbell, Douglas G.},
      url = {http://digitalcollections.ohsu.edu/record/1654},
      title = {Porosity in amalgam restorations as influenced by mix  plasticity},
      publisher = {University of Oregon Health Sciences Center},
      number = {ETD},
      doi = {https://doi.org/10.6083/M4G44NHN},
      recid = {1654},
      address = {1979},
}