Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Hasegawa Kouji and Ishihara Naoshi and Maejima Takashi,Sliding Material Made of Copper Alloy Impregnated Carbon/Carbon Composite for Train Vehicle,Journal of the Japan Society of Powder and Powder Metallurgy,05328799,Japan Society of Powder and Powder Metallurgy,2012,59,1,43-45,https://cir.nii.ac.jp/crid/1390001206309936896,https://doi.org/10.2497/jjspm.59.43