Panchuk АМ, Boichuk VМ, Prysiazhniuk PМ, Panchuk МV, Sheketa VІ. Improvement of methods for researching the elemental composition of biofuels and raw materials for their production. ogpe [Internet]. 2025 Dec. 19 [cited 2026 Feb. 4];(2(44):249-60. Available from: https://www.nge.nung.edu.ua/index.php/nge/article/view/792