BONDAR, K.; SACHKO, A.; CHURUBROV, M.; MAMYSHEV, I. New data on gas composition of the air in gypsum caves from Podillya and Bukovyna. Visnyk of Taras Shevchenko National University of Kyiv. Geology, [S. l.], v. 2, n. 81, p. 44–48, 2018. DOI: 10.17721/1728-2713.81.07. Disponível em: https://geology.bulletin.knu.ua/en/article/view/1385. Acesso em: 11 oct. 2026.