Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Essaki Kenji and Kobayashi Hideki,Investigation of reduction in supply risk of copper,Abstracts for ILCAJ meeting,,"The Institute of Life Cycle Assessment, Japan",2010,2010,0,75-75,https://cir.nii.ac.jp/crid/1390282680639081344,https://doi.org/10.11539/ilcaj.2010.0.75.0