@article{10_4064_sm_138_3_277_284,
     author = {A. Cianchi and   and   and  },
     title = {A sharp rearrangement inequality for the fractional maximal operator},
     journal = {Studia Mathematica},
     pages = {277--284},
     publisher = {mathdoc},
     volume = {138},
     number = {3},
     year = {2000},
     doi = {10.4064/sm-138-3-277-284},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-138-3-277-284/}
}