“Research by the method the simplex-trellised of planning of extraction by the zeolitic tufa of ions La, Pr, Yb from the mixed solutions” (2019) Sorbtsionnye i Khromatograficheskie Protsessy, 12(3). Available at: https://journals.vsu.ru/sorpchrom/article/view/1827 (Accessed: 3 April 2026).