@article{ETD,
      school = {M.S.},
      author = {Santanam, Suresh and },
      url = {http://digitalcollections.ohsu.edu/record/265},
      title = {A trend study of atmospheric methane: 1965-81 GC and polar  icecore measurements},
      publisher = {Oregon Graduate Center},
      number = {ETD},
      doi = {https://doi.org/10.6083/M4R78C4F},
      recid = {265},
      address = {1985},
}