@incollection{Riaz11,
author = {Zahid Riaz and M. Saquib Sarfraz and Michael Beetz},
title = {Towards Unconstrained Face Recognition Using 3D Face Model},
booktitle = {Biometric Systems},
publisher = {IntechOpen},
address = {Rijeka},
year = {2011},
editor = {Zahid Riaz},
chapter = {5},
doi = {10.5772/17340},
url = {https://doi.org/10.5772/17340}
}