VARVARIN, A.; LEVYTSKA, S.; BREI, V. Vapor phase condensation of ethyl lactate into lactide over SnO2/SiO2 catalyst . Reports of the National Academy of Sciences of Ukraine, Kyiv, Ukraine, n. 1, p. 73–79, 2024. DOI: 10.15407/dopovidi2018.01.073. Disponível em: https://nasu-periodicals.org.ua/index.php/dp/article/view/2531. Acesso em: 18 apr. 2026.