APA   Click to copy
Greiff, S., Fischer, A., Stadler, M., & Wüstenberg, S. (2015). Assessing complex problem solving skills with multiple complex systems. Thinking &Amp; Reasoning, 21, 356–382. https://doi.org/10.1080/13546783.2014.989263

Chicago/Turabian   Click to copy
Greiff, S., A. Fischer, M. Stadler, and S. Wüstenberg. “Assessing Complex Problem Solving Skills with Multiple Complex Systems.” Thinking & Reasoning 21 (2015): 356–382.

MLA   Click to copy
Greiff, S., et al. “Assessing Complex Problem Solving Skills with Multiple Complex Systems.” Thinking &Amp; Reasoning, vol. 21, 2015, pp. 356–82, doi:10.1080/13546783.2014.989263.

@article{greiff2015a,
  title = {Assessing complex problem solving skills with multiple complex systems},
  year = {2015},
  journal = {Thinking & Reasoning},
  pages = {356-382},
  volume = {21},
  doi = {10.1080/13546783.2014.989263},
  author = {Greiff, S. and Fischer, A. and Stadler, M. and Wüstenberg, S.}
}