@article{10_4064_sm_43_1_57_60,
     author = {Colin Graham},
     title = {Helson sets and simultaneous extensions to {Fourier} transforms},
     journal = {Studia Mathematica},
     pages = {57--60},
     publisher = {mathdoc},
     volume = {43},
     number = {1},
     year = {1972},
     doi = {10.4064/sm-43-1-57-60},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-43-1-57-60/}
}