@article{Klassen:256581,
      recid = {256581},
      author = {Klassen, Waldemar and Colon, Wilfredo and Lugo, Wanda I.},
      title = {Front Matter},
      address = {2003-07-13},
      number = {1881-2017-453},
      year = {2003},
      url = {http://ageconsearch.umn.edu/record/256581},
      doi = {https://doi.org/10.22004/ag.econ.256581},
}