%0 Journal Article %A N. A. Lomanova %A V. V. Gusarov %T Impedance spectroscopy of polycrystalline materials based on the Aurivillius phase system Bi$_4$Ti$_{3}$O$_{12}$--BiFeO$_3$ %J Nanosistemy: fizika, himiâ, matematika %D 2012 %P 112-122 %V 3 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/NANO_2012_3_6_a12/ %G ru %F NANO_2012_3_6_a12