Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) MATSUHATA Hirofumi,Critical Phenomena and Degeneracies Observed in Electron Diffraction,Nihon Kessho Gakkaishi,03694585,The Crystallographic Society of Japan,2004,46,4,276-285,https://cir.nii.ac.jp/crid/1390282679064704128,https://doi.org/10.5940/jcrsj.46.276