RT Journal Article SR Electronic A1 Otsetova, Anna A1 Otsetova-Dudin, Ekaterina T1 JF Transport And Communications YR 2019 VO 7 IS 2 SP 21 OP 27 DO 10.26552/tac.C.2019.2.5 UL https://tac.uniza.sk/artkey/tac-201902-0005.php AB