Bulavko, G.V., and A.A. Ishchenko. “The Nature of Counterion and Photovoltaic Properties of Cationic Polymethine Dyes”. Reports of the National Academy of Sciences of Ukraine, no. 7 (February 5, 2025): 110–115. Accessed May 30, 2025. https://nasu-periodicals.org.ua/index.php/dp/article/view/15119.