1. Face Recognition Homepage,
http://face-rec.org/
2. Intellio visiscanner retail customer analytics solution,
http://www.intellio.eu/visiscanner.php
3. NEC develops an ultra-compact sensor that estimates age and gender,
http://tweetbuzz.jp/entry/56752845/www.nec.co.jp/press/en/1105/3101.html
4. Lecture Notes in Computer Science;T. Ahonen,2004
5. Baluja, S., Rowley, H.A.: Boosting sex identification performance. Intl. J. of Comput. Vision 71(1), 111–119 (2007)