М. П. Мазур, І. М. Гасюк, Б. Я. Депутат, Л. С. Кайкан, and В. В. Угорчук, “Impedance method for study of the effect on its specific conductivity of process getting conditions of aluminum-substituted lithium iron spinel”, mpky, no. 2(27), pp. 86–90, Nov. 2011.