%0 Journal Article %A Matthew Foreman %A Benjamin Weiss %T An anti-classification theorem for ergodic measure preserving transformations %J Journal of the European Mathematical Society %D 2004 %P 277-292 %V 6 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4171/jems/10/ %R 10.4171/jems/10 %F JEMS_2004_6_3_a0