Tkachenko I. М.; KOBZAR, Y. L.; KRAVCHENKO, V. V.; Shekera О. V.; SHEVCHENKO, V. V. Synthesis of 4,4′-bis(nonafluorobiphenyl-4-oxyphenyl)- 1,4-oxytetrafluorobenzene and ladder spirobisindane-containing polyether on its base . Reports of the National Academy of Sciences of Ukraine, Kyiv, Ukraine, n. 7, p. 100–106, 2024. DOI: 10.15407/dopovidi2016.07.100. Disponível em: https://nasu-periodicals.org.ua/index.php/dp/article/view/11276. Acesso em: 23 dec. 2024.