Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) OKUBO Hikaru and TSUBOI Ryo and SASAKI Shinya,809 The effect of hydrogen on friction properties of DLC films,The Proceedings of the Materials and processing conference,2424-287X,The Japan Society of Mechanical Engineers,2013,2013.21,0,_809-1_,https://cir.nii.ac.jp/crid/1390001205878519936,https://doi.org/10.1299/jsmemp.2013.21._809-1_