SWAPNA, Mohanachandran Nair Sindhu, 2019, Fluorescent emission from a natural carbon matrix incorporating sodium. Journal of Materials Science: Materials in Electronics [online]. 2019. Vol. 1, no. 30. [Accessed 17 April 2025]. DOI 10.1007/s10854-018-0316-2. Retrieved from: https://repozitorij.ung.si/IzpisGradiva.php?lang=eng&id=7422