@article{FaySonnentag2010,
  author    = {Doris Fay and Sabine Sonnentag},
  title     = {A look back to move ahead : new directions for research on proactive performance and other discretionary work behaviours},
  doi       = {10.1111/j.1464-0597.2009.00413.x},
  url       = {http://www3.interscience.wiley.com/cgi-bin/issn?DESCRIPTOR=PRINTISSN\&VALUE=0269-994X},
  year      = {2010},
}