%0 Journal Article %A Radoslaw Szwedek %T Interpolation of approximation numbers between Hilbert spaces %J Annales Fennici Mathematici %D 2015 %P 343-360 %V 40 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.5186/aasfm.2015.4014/ %R 10.5186/aasfm.2015.4014 %G en %F AFM_2015_40_1_a18