@article{10_4064_sm144_1_2,
     author = {Earl Berkson and T. A. Gillespie},
     title = {Spectral decompositions, ergodic averages,
and the {Hilbert} transform},
     journal = {Studia Mathematica},
     pages = {39--61},
     publisher = {mathdoc},
     volume = {144},
     number = {1},
     year = {2001},
     doi = {10.4064/sm144-1-2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm144-1-2/}
}