@article{Oppedahl:143623,
      recid = {143623},
      author = {Oppedahl, David B.},
      title = {AgLetter},
      journal = {AgLetter},
      address = {2011-05},
      number = {819-2016-52664},
      series = {No. 1952},
      year = {2011},
      url = {http://ageconsearch.umn.edu/record/143623},
      doi = {https://doi.org/10.22004/ag.econ.143623},
}