JAKUBCZYK, Alicja, DĄBROWSKA, Małgorzata and DZIKOŃ, Julia. Digital exclusion of people with colour blindness – accessibility analysis of pkp.pl and the results of survey research. Toruńskie Studia Bibliologiczne. Online. 2 July 2024. Vol. 15, no. 2 (29), pp. 9-37. [Accessed 7 July 2025]. DOI 10.12775/TSB.2022.007.