Author,Title,Edition,Publisher,Year,Series,Number,ISBN,ISSN,URL "Duff, Iain S. and Erisman, A. M. and Reid, John Ker",Direct methods for sparse matrices,2nd ed,Oxford University Press,2017,Numerical mathematics and scientific computation,,9780198508380,,https://cir.nii.ac.jp/crid/1130282272597922304