@Article{makinson2000input,
  Title                    = {Input/output logics},
  Author                   = {Makinson, D. and Van Der Torre, L.},
  Journal                  = {Journal of Philosophical Logic},
  Year                     = {2000},
  Number                   = {4},
  Pages                    = {383--408},
  Volume                   = {29},

  Publisher                = {Springer},
  Url                      = {http://icr.uni.lu/leonvandertorre/papers/jpl00.pdf}
}