Vereshchagin, V., K. Varshamov, and A. Gnibeda. “MODELING AND QUALITY EVALUATION BASED ON VISUAL PERCEPTION OF HALFTONE REPRODUCTION”. Innovations in Publishing, Printing and Multimedia Technologies, Oct. 2020, pp. 107-12, https://ojs.kaunokolegija.lt/index.php/TMPK/article/view/391.