@article{Theuvsen:134427,
      recid = {134427},
      author = {Theuvsen, Ludwig},
      title = {Tempora mutantur, nos et mutamur in illis},
      journal = {German Journal of Agricultural Economics},
      address = {2009-05},
      number = {670-2016-45773},
      pages = {2},
      year = {2009},
      url = {http://ageconsearch.umn.edu/record/134427},
      doi = {https://doi.org/10.22004/ag.econ.134427},
}