BibTex format
@inproceedings{Twidle:2009:10.1109/ICAS.2009.42,
author = {Twidle, K and Lupu, E and Sloman, M and Dulay, N},
doi = {10.1109/ICAS.2009.42},
publisher = {IEEE},
title = {Ponder2: A Policy System for Autonomous Pervasive Environments},
url = {http://dx.doi.org/10.1109/ICAS.2009.42},
year = {2009}
}