%0 Journal Article %A G.A. Dawodu %A A.A. Afolabi %T H(t) has functional attributes %J Kragujevac Journal of Mathematics %D 2001 %P 93 %V 23 %I mathdoc %U http://geodesic.mathdoc.fr/item/KJM_2001_23_a10/ %G en %F KJM_2001_23_a10