TY  - JOUR
AU  - Carlo Cecchini
TI  - An abstract characterization of ...-conditional expectations.
JO  - Mathematica Scandinavica
PY  - 1990
SP  - 155
EP  - 160
VL  - 66
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MS2_1990__66_1_167101/
ID  - MS2_1990__66_1_167101
ER  -