著者名,書名,版表示,出版者名,出版年,シリーズ名,番号,ISBN,ISSN,URL "Laan, G. van der and Talman, Dolf and Yang, Zaifu",Existence and approximation of robust stationary points on polytopes,,University of Tsukuba,1996,Institute of Socio-Economic Planning discussion paper series,,,,https://cir.nii.ac.jp/crid/1130000794715226752