%0 Journal Article %A Angel Popov %T On Matrix Functions in Case of Confluent Characteristic Roots %J Mathematica balkanica %D 2008 %P 37 %V 22 %N 1-2 %I mathdoc %U http://geodesic.mathdoc.fr/item/MABA_2008_22_1-2_a2/ %F MABA_2008_22_1-2_a2