@article{AbelerCalakiAndreeetal.2010,
  author    = {Johannes Abeler and Juljana Calaki and Kai Andree and Christoph Basek},
  title     = {The power of apology},
  doi       = {10.1016/j.econlet.2010.01.033},
  url       = {http://www.sciencedirect.com/science/journal/01651765},
  year      = {2010},
}