@article{WeissHeinHewig2021,
  author    = {Martin Weiß and Grit Hein and Johannes Hewig},
  title     = {Between joy and sympathy: Smiling and sad recipient faces increase prosocial behavior in the dictator game},
  journal   = {International Journal of Environmental Research and Public Health},
  volume    = {18},
  number    = {11},
  doi       = {10.3390/ijerph18116172},
  year      = {2021},
}