T. Tsvetkova, P., G. P. Dimitrov, K. Rasheva-Yordanova, and V. Martsenyuk. “Enhancing Manuscript Readability Using Advanced Image Processing Techniques”. Digital Presentation and Preservation of Cultural and Scientific Heritage, vol. 15, Sept. 2025, pp. 137-46, doi:10.55630/dipp.2025.15.13.