@article{MusselGoeritzHewig2013,
  author    = {Patrick Mussel and Anja S. G{\"o}ritz and Johannes Hewig},
  title     = {The value of a smile: Facial expression affects ultimatum-game responses},
  journal   = {Judgment and Decision Making},
  volume    = {8},
  number    = {3},
  year      = {2013},
}