MELNYK, L.M.; GROMOVOY , T.Yu. Desorption Mas Spectrometry Stady of Shungite. Physics and Chemistry of Solid State, [S. l.], v. 16, n. 2, p. 383–387, 2015. DOI: 10.15330/pcss.16.2.383-387. Disponível em: https://journals.pnu.edu.ua/index.php/pcss/article/view/1689. Acesso em: 27 apr. 2024.