%0 Journal Article %A Mohammad El-Haddad %A Fuad Kittaneh %T Numerical radius inequalities for Hilbert space operators. II %J Studia Mathematica %D 2007 %P 133-140 %V 182 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm182-2-3/ %R 10.4064/sm182-2-3 %G en %F 10_4064_sm182_2_3