APA (7th ed.) Citation

Sagonas, C., Tzimiropoulos, G., Zafeiriou, S., & Pantic, M. (2013). A semi-automatic methodology for facial landmark annotation.

Chicago Style (17th ed.) Citation

Sagonas, Christos, Georgios Tzimiropoulos, Stefanos Zafeiriou, and Maja Pantic. A Semi-automatic Methodology for Facial Landmark Annotation. 2013.

MLA (9th ed.) Citation

Sagonas, Christos, et al. A Semi-automatic Methodology for Facial Landmark Annotation. 2013.