Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Endo Yuichi,Project Manager's Roles and Responsibilities in Matrix Organization(Mail to PM),Journal of the Society of Project Management,1345031X,The Society of Project Management,2006,8,3,59-64,https://cir.nii.ac.jp/crid/1390001206110909056,https://doi.org/10.14914/spmj.8.3_59