@article{weko_141557_1,
   author	 = "Akihiro,Ida and Takeshi,Iwashita and Makiko,Ohtani and Kazuro,Hirahara",
   title	 = "Improvement of Hierarchical Matrices with Adaptive Cross Approximation for Large-scale Simulation",
   journal	 = "情報処理学会論文誌コンピューティングシステム（ACS）",
   year 	 = "2015",
   volume	 = "8",
   number	 = "1",
   month	 = "mar"
}