APA (7th ed.) Citation

Λάλας, Σ. -. Π., & Lalas, S. (2015). Collaborative filtering techniques for recommender systems.

Chicago Style (17th ed.) Citation

Λάλας, Σέργιος - Παναγιώτης, and Sergios Lalas. Collaborative Filtering Techniques for Recommender Systems. 2015.

MLA (9th ed.) Citation

Λάλας, Σέργιος - Παναγιώτης, and Sergios Lalas. Collaborative Filtering Techniques for Recommender Systems. 2015.