%0 Journal Article %A Walsh, John B. %T The perfection of multiplicative functionals %J Séminaire de probabilités de Strasbourg %D 1972 %P 233-242 %V 6 %I Springer - Lecture Notes in Mathematics %U http://www.numdam.org/item/SPS_1972__6__233_0/ %G en %F SPS_1972__6__233_0