APA   Click to copy
Greiff, S., Niepel, C., & Wüstenberg, S. (2015). Editorial to the special issue 21st century skills. Recent advancements and international developments. Thinking Skills &Amp; Creativity, 18, 1–3. https://doi.org/10.1016/j.tsc.2015.04.007

Chicago/Turabian   Click to copy
Greiff, S., C. Niepel, and S. Wüstenberg. “Editorial to the Special Issue 21st Century Skills. Recent Advancements and International Developments.” Thinking Skills & Creativity 18 (2015): 1–3.

MLA   Click to copy
Greiff, S., et al. “Editorial to the Special Issue 21st Century Skills. Recent Advancements and International Developments.” Thinking Skills &Amp; Creativity, vol. 18, 2015, pp. 1–3, doi:10.1016/j.tsc.2015.04.007.

@article{greiff2015a,
  title = {Editorial to the special issue 21st century skills. Recent advancements and international developments},
  year = {2015},
  journal = {Thinking Skills & Creativity},
  pages = {1-3},
  volume = {18},
  doi = {10.1016/j.tsc.2015.04.007},
  author = {Greiff, S. and Niepel, C. and Wüstenberg, S.}
}