Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Y Cao,Depth-sensing instrumented indentation with dual sharp indenters: stability analysis and corresponding regularization schemes,Acta Materialia,1359-6454,Elsevier BV,2004-03-08,52,5,1143-1153,https://cir.nii.ac.jp/crid/1361699995040145024,https://doi.org/10.1016/j.actamat.2003.11.001