Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) MICHIYAMA Yasuhiro,Tribology in Titanium Materials,JOURNAL OF JAPANESE SOCIETY OF TRIBOLOGISTS,09151168,Japanese Society of Tribologists,2017,62,8,495-500,https://cir.nii.ac.jp/crid/1390282680449209856,https://doi.org/10.18914/tribologist.62.08_495