@article{egbert_greiff_xhangolli_2015, 
  title={Pay What You Want (PWYW) pricing ex post consumption: a sales strategy for experience goods}, 
  volume={16}, 
  DOI={10.3917/jie.016.0249}, 
  publisher={CAIRN}, 
  author={Egbert and Greiff and Xhangolli}, 
  year={2015}
  }