@article{ElbeStrahlerKrustrupetal.2010,
  author    = {Anne-Marie Elbe and Katharina Strahler and Peter Krustrup and Johan Wikman and Reinhard Stelter},
  title     = {Experiencing flow in different types of physical activity intervention programs : three randomized studies},
  doi       = {10.1111/j.1600-0838.2010.01112.x},
  url       = {http://www3.interscience.wiley.com/cgi-bin/issn?DESCRIPTOR=PRINTISSN\&VALUE=0905-7188},
  year      = {2010},
}