@article{Lewis:225923,
      recid = {225923},
      author = {Lewis, Tracy R. and Sappington, David E.M.},
      title = {Regulating a Monopolist with Unknown Demand},
      address = {1987},
      number = {1572-2016-133906},
      pages = {42},
      year = {1987},
      url = {http://ageconsearch.umn.edu/record/225923},
      doi = {https://doi.org/10.22004/ag.econ.225923},
}