Aifandopoulou, Georgia, Iraklis Stamos, Glikeria Myrovali, and Maria Morfoulaki. 2015. “Mapping the Opportunities of Rail Transport; A Data-Driven Methodology for Capturing Rail Competitiveness at European Level”. Periodica Polytechnica Transportation Engineering 43 (1):48-54. https://doi.org/10.3311/PPtr.7739.