@article{ETD,
      recid = {2113},
      author = {Wittbrodt, Paul R. and },
      title = {Reduction of hexavalent chromium by soil humic substances},
      publisher = {Oregon Health and Sciences University},
      school = {Ph.D.},
      address = {1994-07-01},
      number = {ETD},
      url = {http://digitalcollections.ohsu.edu/record/2113},
      doi = {https://doi.org/10.6083/M4KD1W45},
}