%0 Journal Article %A Ryszard Jajte %T Pointwise limit theorem for a class of unbounded operators in $\mathbb L^r$-spaces %J Studia Mathematica %D 2007 %P 49-61 %V 179 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm179-1-5/ %R 10.4064/sm179-1-5 %G en %F 10_4064_sm179_1_5