%0 Journal Article %A Ryotaro Sato %T Pointwise ergodic theorems in Lorentz spaces L(p,q) for null preserving transformations %J Studia Mathematica %D 1995 %P 227-236 %V 114 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm-114-3-227-236/ %R 10.4064/sm-114-3-227-236 %G en %F 10_4064_sm_114_3_227_236