APA (7th ed.) Citation

Tzimiropoulos, G., Zafeiriou, S., & Pantic, M. (2011). Principal component analysis of image gradient orientations for face recognition.

Chicago Style (17th ed.) Citation

Tzimiropoulos, Georgios, Stefanos Zafeiriou, and Maja Pantic. Principal Component Analysis of Image Gradient Orientations for Face Recognition. 2011.

MLA (9th ed.) Citation

Tzimiropoulos, Georgios, et al. Principal Component Analysis of Image Gradient Orientations for Face Recognition. 2011.