RT Journal Article SR Electronic A1 Synák, František A1 Rievaj, Vladimír A1 Semanová, Štefánia A1 Palúch, Ján T1 JF Transport And Communications YR 2018 VO 6 IS 1 SP 30 OP 34 DO 10.26552/tac.C.2018.1.8 UL https://tac.uniza.sk/artkey/tac-201801-0008.php AB