APA   Click to copy
Fanali, S., & Giulietti, M. (2012). Quotient curves of the GK curve. Advances in Geometry, 12, 239–268.

Chicago/Turabian   Click to copy
Fanali, Stefania, and Massimo Giulietti. “Quotient Curves of the GK Curve.” Advances in Geometry 12 (2012): 239–268.

MLA   Click to copy
Fanali, Stefania, and Massimo Giulietti. “Quotient Curves of the GK Curve.” Advances in Geometry, vol. 12, 2012, pp. 239–68.

@article{fanali2012a,
  title = {Quotient curves of the GK curve},
  year = {2012},
  journal = {Advances in Geometry},
  pages = {239-268},
  volume = {12},
  author = {Fanali, Stefania and Giulietti, Massimo}
}