APA   Click to copy
Ras, E., Krkovic, K., Greiff, S., Tobias, E., & Maquil, V. (2014). Moving towards the assessment of collaborative problem solving skills with a tangible user interface. The Turkish Online Journal of Educational Technology, 13, 95–104.

Chicago/Turabian   Click to copy
Ras, E., K. Krkovic, S. Greiff, E. Tobias, and V. Maquil. “Moving towards the Assessment of Collaborative Problem Solving Skills with a Tangible User Interface.” The Turkish Online Journal of Educational Technology 13 (2014): 95–104.

MLA   Click to copy
Ras, E., et al. “Moving towards the Assessment of Collaborative Problem Solving Skills with a Tangible User Interface.” The Turkish Online Journal of Educational Technology, vol. 13, 2014, pp. 95–104.

@article{ras2014a,
  title = {Moving towards the assessment of collaborative problem solving skills with a tangible user interface},
  year = {2014},
  journal = {The Turkish Online Journal of Educational Technology},
  pages = {95-104},
  volume = {13},
  author = {Ras, E. and Krkovic, K. and Greiff, S. and Tobias, E. and Maquil, V.}
}