Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) SUGAWARA Yasuhiro and NAITOH Yoshitaka and KAGESHIMA Masami and LI Yan Jun,Development of Noncontact Atomic Force Microscopy Operating at Low Temperatures,Journal of the Vacuum Society of Japan,18822398,The Vacuum Society of Japan,2008,51,12,789-795,https://cir.nii.ac.jp/crid/1390282680270895232,https://doi.org/10.3131/jvsj2.51.789