%0 Journal Article %A Jahoda, Pavel %A Pěluchová, Monika %T Some sufficient conditions for zero asymptotic density and the expression of natural numbers as sum of values of special functions %J Communications in Mathematics %D 2005 %P 13-18 %V 13 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/COMIM_2005__13_1_a1/ %G en %F COMIM_2005__13_1_a1