Csaba Hegedüs Paolo Ciancarini Attila Franko Ales Kancilija István Moldován Gregor Papa Spela Poklukar Mario Riccardi Alberto Sillitti Pál Varga Proactive Maintenance of Railway Switches. 725-730 2018 CoDIT https://doi.org/10.1109/CoDIT.2018.8394832 conf/codit/2018 db/conf/codit/codit2018.html#HegedusCFKMPPRS18