Tutukina, M. N., Y. A. Purtov, U. S.- Shvyreva, A. A. Bykov, K. S. Shavkunov, O. A. Glazunova, and O. N. Ozoline. “Polynucleotide Phosphorylase Pnp and Exonuclease Rnr, Isolated by Specific Sorption on Nucleic Acids, Process RNA Products Derived from «promoter Islands»”. Sorbtsionnye I Khromatograficheskie Protsessy, Vol. 16, no. 6, Nov. 2019, https://journals.vsu.ru/sorpchrom/article/view/1427.