Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Usuki Tatsuya and Kawakami Hiroshi,Temperature Dependence of The Growth Process of Grain Boundary Steps Formed on Ultra–Precision Finished Polycrystalline Copper Surface,Journal of Japan Institute of Copper,13477234,Japan Institute of Copper,2020,59,1,304-308,https://cir.nii.ac.jp/crid/1391412326423596416,https://doi.org/10.34562/jic.59.1_304