APA   Click to copy
Greiff, S., Stadler, M., Sonnleitner, P., Wolff, C., & Martin, R. (2015). Sometimes less is more. Comparing the validity of complex problem solving measures. Intelligence, 50, 100–113. https://doi.org/10.1016/j.intell.2015.02.007

Chicago/Turabian   Click to copy
Greiff, S., M. Stadler, P. Sonnleitner, C. Wolff, and R. Martin. “Sometimes Less Is More. Comparing the Validity of Complex Problem Solving Measures.” Intelligence 50 (2015): 100–113.

MLA   Click to copy
Greiff, S., et al. “Sometimes Less Is More. Comparing the Validity of Complex Problem Solving Measures.” Intelligence, vol. 50, 2015, pp. 100–13, doi:10.1016/j.intell.2015.02.007.

@article{greiff2015a,
  title = {Sometimes less is more. Comparing the validity of complex problem solving measures},
  year = {2015},
  journal = {Intelligence},
  pages = {100-113},
  volume = {50},
  doi = {10.1016/j.intell.2015.02.007},
  author = {Greiff, S. and Stadler, M. and Sonnleitner, P. and Wolff, C. and Martin, R.}
}