%0 Journal Article %A L. Matejíčka %T A solution to fourth Qi's conjecture on a complete monotonicity %J Problemy analiza %D 2020 %P 131-136 %V 9 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/PA_2020_9_3_a8/ %G en %F PA_2020_9_3_a8