著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) "馬場, 善久 and BABA, Yoshihisa",The Derivation of the Hessian Matrix of exp (A) with a Symmetric Real Matrix A,創価経済論集,03883027,創価大学経済学会,2003-12-01,33,1/2,35-45,https://cir.nii.ac.jp/crid/1050564287680318208,