%0 Journal Article %A Krystyna Ziętak %T On the optimum rational function connected with the ADI-method %J Applicationes Mathematicae %D 1969 %P 337-352 %V 11 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/am-11-3-337-352/ %R 10.4064/am-11-3-337-352 %G en %F 10_4064_am_11_3_337_352