APA (7th ed.) Citation

Symeonidis, P., Nanopoulos, A., Papadopoulos, A. N., & Manolopoulos, Y. (2008). Collaborative recommender systems: Combining effectiveness and efficiency. Expert systems with applications, 34(4), 2995-3013. https://doi.org/10.1016/j.eswa.2007.05.013

Chicago Style (17th ed.) Citation

Symeonidis, Panagiotis, Alexandros Nanopoulos, Apostolos N. Papadopoulos, and Yannis Manolopoulos. "Collaborative Recommender Systems: Combining Effectiveness and Efficiency." Expert Systems with Applications 34, no. 4 (2008): 2995-3013. https://doi.org/10.1016/j.eswa.2007.05.013.

MLA (9th ed.) Citation

Symeonidis, Panagiotis, et al. "Collaborative Recommender Systems: Combining Effectiveness and Efficiency." Expert Systems with Applications, vol. 34, no. 4, 2008, pp. 2995-3013, https://doi.org/10.1016/j.eswa.2007.05.013.