%0 Journal Article %A F. Blanchard %T Relatively perfect σ-algebras for flows %J Studia Mathematica %D 1995 %P 71-85 %V 114 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm-114-1-71-85/ %R 10.4064/sm-114-1-71-85 %G en %F 10_4064_sm_114_1_71_85