%0 Journal Article %A Klaus Ritter %T Average errors for zero finding: lower bounds for smooth or monotone functions. %J Aequationes mathematicae %D 1994 %P 194-219 %V 48 %N 2-3 %I mathdoc %U http://geodesic.mathdoc.fr/item/AM2_1994__48_2-3_137607/ %F AM2_1994__48_2-3_137607