PT Journal AU Rievaj, V Mokrickova, L Synak, F SO Transport And Communications PY 2017 BP 13 EP 16 VL 5 IS 1 DI 10.26552/tac.C.2017.1.3 WP https://tac.uniza.sk/artkey/tac-201701-0003.php SN 13395130 ER