APA   Click to copy
Greiff, S. (2012). Assessment and theory in complex problem solving. A continuing contradiction? Journal of Educational and Developmental Psychology, 2, 49–56. https://doi.org/10.5539/jedp.v2n1p49

Chicago/Turabian   Click to copy
Greiff, S. “Assessment and Theory in Complex Problem Solving. A Continuing Contradiction?” Journal of Educational and Developmental Psychology 2 (2012): 49–56.

MLA   Click to copy
Greiff, S. “Assessment and Theory in Complex Problem Solving. A Continuing Contradiction?” Journal of Educational and Developmental Psychology, vol. 2, 2012, pp. 49–56, doi:10.5539/jedp.v2n1p49.

@article{greiff2012a,
  title = {Assessment and theory in complex problem solving. A continuing contradiction?},
  year = {2012},
  journal = {Journal of Educational and Developmental Psychology},
  pages = {49-56},
  volume = {2},
  doi = {10.5539/jedp.v2n1p49},
  author = {Greiff, S.}
}