@INPROCEEDINGS {11859,
author={LC Cachulo and CR Rabadão and T.  Fernandes and F. Perdigoto and S.M.M. Faria},
doi={},
booktitle={Conf. on Enterprise Information Systems - CENTERIS},
title={Real-time information system for small and medium bus operators},
year={2012},
month={October},
volume={-},
pages={---} 
}