%0 Journal Article %A E. I. Suvorova %T Electron microscopy of biogenic minerals: structure and sizes of uranium dioxide nanoparticles with Mn$^{2+}$ impurities %J Nanosistemy: fizika, himiâ, matematika %D 2019 %P 215-226 %V 10 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/NANO_2019_10_2_a13/ %G en %F NANO_2019_10_2_a13