RT Journal Article SR Electronic A1 Lokšová, Zuzana T1 QUALITY ASSURANCE SYSTEMS IN PUBLIC TRANSPORT JF Doprava a spoje YR 2012 VO 8 IS 2 SP 290 OP 294 UL https://tac.uniza.sk/artkey/das-201202-0033.php AB transport is out-sourced the quality of service has to be assured for obvious reasons. Therefore some relevant quality matters are presented in this article.