July 2009.

Gagné and Deci’s 2005 article, “Self-determination theory and work motivation,” appeared in the Journal of Organizational Behavior’s 30th anniversary edition as one of the 8 most influential articles published in JOB since its founding in 1980
Read more at:
http://onlinelibrary.wiley.com/doi/10.1002/job.v30:5/issuetoc