Титарь, В. П., and Т. В. Богданова. “The Main Provisions of the Holographic Model of the Human Visual System”. Visnyk of V.N. Karazin Kharkiv National University, Series “Radio Physics and Electronics”, no. 24, 1, pp. 73-78, https://periodicals.karazin.ua/radiophysics/article/view/6388.