%0 Journal Article %A Milan Tasković %T On a result of Jachymski, Matkowski, and Świątkowski %J Mathematica Moravica %D 2012 %P 33 - 35 %V 16 %N 1 %I mathdoc %U https://geodesic-test.mathdoc.fr/item/MM3_2012_16_1_a1/ %F MM3_2012_16_1_a1