@INPROCEEDINGS {34428,
author={R.  Leles and J. R. Rodrigues and I. W. Woungang and R.  Rabêlo and V. F. Furtado},
doi={},
booktitle={IEEE Latin-American Conf. on Communications - LATINCOM},
title={Railways Networks – Challenges for IoT Underground Wireless Communications},
year={2018},
month={November},
volume={},
pages={-} 
}