APA (7th ed.) Citation

Zeng, D., Veldhuis, R., & Spreeuwers, L. A survey of face recognition techniques under occlusion. Wiley.

Chicago Style (17th ed.) Citation

Zeng, Dan, Raymond Veldhuis, and Luuk Spreeuwers. A Survey of Face Recognition Techniques Under Occlusion. Wiley.

MLA (9th ed.) Citation

Zeng, Dan, et al. A Survey of Face Recognition Techniques Under Occlusion. Wiley.