Tomina, E. V., N. A. Khodosova, and A. N. Lukin. “Sorption and Surface Properties of Modified Biochar Obtained As a Result of Carbonization of Pine Sawdust”. Sorbtsionnye I Khromatograficheskie Protsessy, Vol. 22, no. 4, Nov. 2022, pp. 442-5, doi:10.17308/sorpchrom.2022.22/10600.