The paper "Towards the Internet of Smart Trains: A Review on Industrial IoT-Connected Railways", co-authored by P. Fraga-Lamas, T. M. Fernández-Caramés, L. Castedo has been published in Sensors, an international journal ranked Q1 according to JCR (Impact Factor 2.677 in 2016). DOI: 10.3390/s17061457.