PT Journal AU Slavik, R Benova, D Gnap, J Stopka, O SO Transport And Communications PY 2018 BP 26 EP 29 VL 6 IS 1 DI 10.26552/tac.C.2018.1.7 WP https://tac.uniza.sk/artkey/tac-201801-0007.php SN 13395130 ER