@book       ( behringer1999iwarintro,
key =   "Behringer et al" ,
author  =   "R. Behringer and G. Klinker and D. Mizell" ,
title   =   "Augmented Reality - Placing Artificial Objects in Real Scenes" ,
publisher=  "AK Peters" ,
year    =   "1999" ,
keywords=   "AR" ,
)