PT Journal AU Zahumenska, Z Gasparik, J Skorupa, M Vladimirovich Kurenkov, P SO Transport And Communications PY 2017 BP 41 EP 45 VL 5 IS 2 DI 10.26552/tac.C.2017.2.10 WP https://tac.uniza.sk/artkey/tac-201702-0010.php SN 13395130 ER