@article{10_4064_sm157_3_2,
     author = {B. Hollenbeck and N. J.  Kalton and I. E.  Verbitsky},
     title = {Best constants for some operators
  associated with the {Fourier} and {Hilbert} transforms},
     journal = {Studia Mathematica},
     pages = {237--278},
     publisher = {mathdoc},
     volume = {157},
     number = {3},
     year = {2003},
     doi = {10.4064/sm157-3-2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm157-3-2/}
}