Deineka, V. I., L. A. Deineka, A. N. Sidorov, and I. I. Tynyanaya. “Sample Preparation for Anthocyanins and Betacyanins HPLC Determination. The Effect of the Sample Solvent”. Sorbtsionnye I Khromatograficheskie Protsessy, Vol. 16, no. 3, Nov. 2019, https://journals.vsu.ru/sorpchrom/article/view/1362.