Impedance spectroscopy method for investigation of the polycrystalline inhomogeneous ceramicsZ.V. Mocanu, G. Apachitei, L. Padurariu, F. Tudorache, L.P. Curecheriu and L. MitoseriuEur. Phys. J. Appl. Phys., 56 1 (2011) 10102DOI: https://doi.org/10.1051/epjap/2011110094