@article{ETD,
      school = {Ph.D.},
      author = {Puretz, Joseph and },
      url = {http://digitalcollections.ohsu.edu/record/279},
      title = {A theoretical and experimental study of liquid metal ion  sources and their application to focused ion beam  technology},
      publisher = {Oregon Graduate Center},
      number = {ETD},
      doi = {https://doi.org/10.6083/M4XS5SB1},
      recid = {279},
      address = {1988},
}