%0 Journal Article %A Mark Leckband %T Two-weight mixed norm inequalities for maximal operators and extrapolation results for the fractional maximal operator %J Studia Mathematica %D 1987 %P 167-180 %V 87 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm-87-2-167-180/ %R 10.4064/sm-87-2-167-180 %G en %F 10_4064_sm_87_2_167_180