PT Journal AU Rievaj, V Mokrickova, L Synak, F SO Transport And Communications PY 2016 BP 15 EP 17 VL 4 IS 2 DI 10.26552/tac.C.2016.2.4 WP https://tac.uniza.sk/artkey/tac-201602-0004.php SN 13395130 ER