Dielectric and microstructural properties of BaTiO3 and Ba0.9925Er0.0075TiO3 ceramicsFatin Adila Ismail, Rozana Aina Maulat Osman, Mohd Sobri Idris, Sanna Taking and Zul Azhar Zahid JamalEPJ Web Conf., 162 (2017) 01051DOI: https://doi.org/10.1051/epjconf/201716201051