%0 Journal Article %A B. N. Karlov %T On elementary equivalence of some unoids and unoids of their subsets %J Vestnik Tverskogo gosudarstvennogo universiteta. Seriâ Prikladnaâ matematika %D 2021 %P 18-32 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/VTPMK_2021_3_a1/ %G ru %F VTPMK_2021_3_a1