%0 Journal Article %A Krystyna Ziętak %T Strict spectral approximation of a matrix and some related problems %J Applicationes Mathematicae %D 1997 %P 267-280 %V 24 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/am-24-3-267-280/ %R 10.4064/am-24-3-267-280 %G en %F 10_4064_am_24_3_267_280