@techreport{weko_29355_1,
   author	 = "佐藤,真琴",
   title	 = "データ分散の図式表現と計算分散公式の提案及び評価",
   year 	 = "2001",
   institution	 = "日立製作所システム開発研究所",
   number	 = "77(2001-HPC-087)",
   month	 = "jul"
}