APA   Click to copy
Greiff, S., Neubert, J. C., Niepel, C., & Ederer, P. (2015). Problem solving. Facilitating the utilization of a concept towards lifelong education. Special Issue. International Journal of Lifelong Education. https://doi.org/10.1080/02601370.2015.1060028

Chicago/Turabian   Click to copy
Greiff, S., J. C. Neubert, C. Niepel, and P. Ederer. “Problem Solving. Facilitating the Utilization of a Concept towards Lifelong Education. Special Issue.” International Journal of Lifelong Education (2015).

MLA   Click to copy
Greiff, S., et al. “Problem Solving. Facilitating the Utilization of a Concept towards Lifelong Education. Special Issue.” International Journal of Lifelong Education, 2015, doi:10.1080/02601370.2015.1060028.

@article{greiff2015a,
  title = {Problem solving. Facilitating the utilization of a concept towards lifelong education. Special Issue},
  year = {2015},
  journal = {International Journal of Lifelong Education},
  doi = {10.1080/02601370.2015.1060028},
  author = {Greiff, S. and Neubert, J. C. and Niepel, C. and Ederer, P.}
}