OZMEC-BAN, Maja, Ružica ŠKURLA BABIĆ, Andrija VIDOVIĆ, and Matija BRAČIĆ. 2022. “A Review of Ancillary Services Implementation in the Revenue Management Systems”. Promet - Traffic&Transportation 34 (4), 581-94. https://doi.org/10.7307/ptt.v34i4.4065.