@ARTICLE {2082,
author={M.R.O de Oliveira and R. Valadas and A. Pacheco and P. Salvador},
doi={10.1093/ietconi/e9O-b.7.1594},
journal={IEICE Transactions on Communications},
title={Cluster analysis of Internet users based on hourly traffic utilization},
year={2007},
month={July},
volume={E90-B},
number={7},
pages={1594-1607.},
ISSN={0916-8516}
}