@article{10_4064_sm197_1_6,
     author = {Javier Soria},
     title = {Optimal bounds of restricted type for
 the {Hardy} operator minus the identity
 on the cone of radially decreasing functions},
     journal = {Studia Mathematica},
     pages = {69--79},
     publisher = {mathdoc},
     volume = {197},
     number = {1},
     year = {2010},
     doi = {10.4064/sm197-1-6},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm197-1-6/}
}