%0 Journal Article %A Ćirić, Ljubomir B. %T On Diviccaro, Fisher and Sessa open questions %J Archivum mathematicum %D 1993 %P 145-152 %V 29 %N 3-4 %U http://geodesic.mathdoc.fr/item/ARM_1993_29_3-4_a2/ %G en %F ARM_1993_29_3-4_a2