RT Journal Article SR Electronic A1 Rybicka, Iwona A1 Droździel, Paweł A1 Caban, Jacek A1 Madleňák, Radovan T1 JF Transport And Communications YR 2016 VO 4 IS 2 SP 18 OP 22 DO 10.26552/tac.C.2016.2.5 UL https://tac.uniza.sk/artkey/tac-201602-0005.php AB