@article{Geng2007,
author = {Geng, X. and Zhou, Z.-H. and Smith-Miles, K.},
title= {Automatic age estimation based on facial aging patterns},
year = {2007},
doi = {10.1109/TPAMI.2007.70733},
volume = {29},
number = {12},
pages = {2234--2240},
}