“Obtaining of Nano Gold from Concentrate (Banská Hodruša, Slovakia) Using Algae With Utilization of Mechanochemical Activation”. Global Journal of Science Frontier Research 21, no. H3 (May 30, 2021): 1–5. Accessed August 15, 2026. https://www.journalofscience.org/index.php/GJSFR/article/view/101835.