Structural and Magnetic Рroperties of Copper Substituted Mg-FerritesTatiana Kiseleva, Vladislav Kabanov, Alexander Ilyushin, Gennadiy Markov, Deleg Sanga and H. HirazawaEPJ Web Conf., 185 (2018) 04010DOI: https://doi.org/10.1051/epjconf/201818504010