@inproceedings{Pessoa2012,
  author    = {Leonel Cesarino Pess{\^o}a},
  title     = {Inequality, ability to pay and the theories of equal and proportional sacrifices},
  booktitle = {25th IVR World Congress: Law, Science and Technology Frankfurt am Main 15-20 August 2011 ; Paper Series ; 095},
  year      = {2012},
}