%0 Journal Article %A Norberto Fava %T Weak type inequalities for product operators %J Studia Mathematica %D 1972 %P 271-288 %V 42 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm-42-3-271-288/ %R 10.4064/sm-42-3-271-288 %G en %F 10_4064_sm_42_3_271_288