@article{CrutzenGoeritz2011,
  author    = {Rik Crutzen and Anja S. G{\"o}ritz},
  title     = {Does social desirability compromise self-reports of physical activity in web-based research?},
  journal   = {International Journal of Behavioral Nutrition and Physical Activity},
  volume    = {8},
  number    = {31},
  doi       = {10.1186/1479-5868-8-31},
  year      = {2011},
}