@article{10_4064_sm176_2_1,
     author = {Sichun Wang},
     title = {A radial estimate for the maximal operator
associated  with the free {Schr\"odinger} equation},
     journal = {Studia Mathematica},
     pages = {95--112},
     publisher = {mathdoc},
     volume = {176},
     number = {2},
     year = {2006},
     doi = {10.4064/sm176-2-1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm176-2-1/}
}