RT Journal Article SR Electronic A1 Zeman, Daniel A1 Juránková, Petra A1 Švadlenka, Libor T1 JF Transport And Communications YR 2013 VO 1 IS 1 SP 33 OP 39 DO 10.26552/tac.C.2013.1.8 UL https://tac.uniza.sk/artkey/tac-201301-0008.php AB