%0 Journal Article %A Campos Ferreira, J. %T On some general notions of superior limit, inferior limit and value of a distribution at a point. %J Portugaliae mathematica %D 2001 %P 139-158 %V 58 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/PORMA_2001__58_2_49908/ %G en %F PORMA_2001__58_2_49908