Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Hideyuki Takahashi and Toyohiko Okumura,A Novel Mapping Technique of Oxide Chemical States by Electron Probe Microanalysis,Journal of electron microscopy,00220744,Oxford : Published for the Japanese Society of Electron Microscopy by Oxford University Press,1996-12,45,6,518-521,https://cir.nii.ac.jp/crid/1520010380254757888,