@article{10_4064_sm168_1_5,
     author = {Fuad Kittaneh},
     title = {Numerical radius inequalities for {Hilbert} space operators},
     journal = {Studia Mathematica},
     pages = {73--80},
     publisher = {mathdoc},
     volume = {168},
     number = {1},
     year = {2005},
     doi = {10.4064/sm168-1-5},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm168-1-5/}
}