Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) OGUCHI Masahiro,Various Definitions of Product Lifetimes,"Journal of Life Cycle Assessment, Japan",18802761,"The Institute of Life Cycle Assessment, Japan",2018,14,1,64-69,https://cir.nii.ac.jp/crid/1390283659828034432,https://doi.org/10.3370/lca.14.64