%0 Journal Article %A Brannath, Werner %A Schachermayer, Walter %T A bipolar theorem for L${}_+^0(\Omega ,{\mathcal {F}},{\bf P})$ %J Séminaire de probabilités de Strasbourg %D 1999 %P 349-354 %V 33 %I Springer - Lecture Notes in Mathematics %U http://www.numdam.org/item/SPS_1999__33__349_0/ %G en %F SPS_1999__33__349_0