%0 Journal Article %A Jaroslav Beránek %A Jan Chvalina %T On Tabor's problem concerning a certain quasi-ordering of iterative roots of functions. %J Aequationes mathematicae %D 1990 %P 1-5 %V 39 %N 2-3 %I mathdoc %U http://geodesic.mathdoc.fr/item/AM2_1990__39_2-3_137333/ %F AM2_1990__39_2-3_137333