%0 Journal Article %A Loukas Grafakos %T On multilinear fractional integrals %J Studia Mathematica %D 1992 %P 49-56 %V 102 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4064/sm-102-1-49-56/ %R 10.4064/sm-102-1-49-56 %G en %F 10_4064_sm_102_1_49_56