Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) TOMITA Takeshi and HARADA Yoshiyasu and WATANABE Hisao and ETOH Terukazu,Reduction of Contamination in Analytical Electron Microscopy,Shinku,05598516,The Vacuum Society of Japan,1979,22,4,158-164,https://cir.nii.ac.jp/crid/1390001204067471744,https://doi.org/10.3131/jvsj.22.158