APA (7th ed.) Citation

Groen, E. C., Seyff, N., Ali, R., Dalpiaz, F., Doerr, J., Guzman, E., . . . Stade, M. (2017). The Crowd in Requirements Engineering: The Landscape and Challenges. IEEE software, 34(2), 44-52. https://doi.org/10.1109/MS.2017.33

Chicago Style (17th ed.) Citation

Groen, Eduard C., et al. "The Crowd in Requirements Engineering: The Landscape and Challenges." IEEE Software 34, no. 2 (2017): 44-52. https://doi.org/10.1109/MS.2017.33.

MLA (9th ed.) Citation

Groen, Eduard C., et al. "The Crowd in Requirements Engineering: The Landscape and Challenges." IEEE Software, vol. 34, no. 2, 2017, pp. 44-52, https://doi.org/10.1109/MS.2017.33.