Sabev, N., G. N. Georgieva-Tsaneva, and G. Bogdanova. “Research, Analysis, and Evaluation of Web Accessibility for a Selected Group of Public Websites in Bulgaria”. Journal of Accessibility and Design for All, vol. 10, no. 1, May 2020, pp. 124-60, doi:10.17411/jacces.v10i1.215.