TY  - JOUR
AU  - Ziegler, Tamar
TI  - Universal characteristic factors and Furstenberg averages
JO  - Journal of the American Mathematical Society
PY  - 2007
SP  - 53
EP  - 97
VL  - 20
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.1090/S0894-0347-06-00532-7/
DO  - 10.1090/S0894-0347-06-00532-7
ID  - 10_1090_S0894_0347_06_00532_7
ER  -