-Ministry of Transport, Construction and Regional Development, www.telecom.gov.sk
-Association of Road Transport Operators of the Slovak Republic (ČESMAD), www.cesmad.sk
-Slovak Union of Motor Carriers (UNAS), www.uniadopravcov.sk
-Transport Research Institute (VÚD), www.vud.sk
-Electronic Toll Collection system, www.emyto.sk
21. Oct 2013 at 0:00 | Compiled by Spectator staff