Shelekhova , Natalya V., and Tamara M. Shelekhova. “Study of an Ethanol Extract of Oak Wood by Capillary Electrophoresis, Gas Chromatography, and Chromatography-Mass Spectrometry ”. Sorbtsionnye i Khromatograficheskie Protsessy 21, no. 6 (January 8, 2022): 868-878. Accessed December 5, 2025. https://journals.vsu.ru/sorpchrom/article/view/3833.