@article{Black&Wiliam_2009,
  added-at = {2008-12-01T11:44:02.000+0100},
  author = {Black, Paul and Wiliam, Dylan},
  biburl = {http://www.bibsonomy.org/bibtex/2207ea774acca3d0164dc5d9295921513/yish},
  interhash = {be45dae299108143d033e18958b1acf1},
  intrahash = {207ea774acca3d0164dc5d9295921513},
  journal = {Assessment, evaluation and accountability},
  keywords = {WLEFormativeEAssessment assessment feasstpatterns formative theory wleformativeeassessment},
  number = 1,
  timestamp = {2008-12-01T11:44:02.000+0100},
  title = {Developing the theory of formative assessment},
  volume = 1,
  year = 2009
}