@article{lopes_galletta_2006, 
  title={Consumer Perceptions and Willingness to Pay for Intrinsically Motivated Online Content}, 
  volume={23}, 
  DOI={10.2753/mis0742-1222230209}, 
  publisher={Informa UK Limited}, 
  author={Lopes and Galletta}, 
  year={2006}
  }