%0 Journal Article %A M. N. Rybakov %T Trees as a tool for modelling undecidable problems %J Vestnik Tverskogo gosudarstvennogo universiteta. Seriâ Prikladnaâ matematika %D 2023 %P 5-23 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/VTPMK_2023_1_a0/ %G ru %F VTPMK_2023_1_a0