Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) PARK Tae-Geun and HAN Sang-Su and ISHII Hiroaki,A Project Network Scheduling Problems with Fuzzy Precedence Relation,日本オペレーションズ・リサーチ学会秋季研究発表会アブストラクト集,,The Operations Research Society of Japan,1996-11-07,1996,,100-101,https://cir.nii.ac.jp/crid/1570854177442448384,