@Inproceedings{aaai/prop-pb,
  author     = {Markus Brill and Stefan Forster and Martin Lackner and Jan Maly and Jannik Peters},
  title      = {Proportionality in Approval-Based Participatory Budgeting},
  booktitle  = {Proceedings of the 37th AAAI Conference on Artificial Intelligence (AAAI 2023)},
  year       = {2023},
  pages      = {5524--5531},
  publisher  = {AAAI Press},
}