@incollection{AST_1973__5__3_0,
     author = {K\"orner, Thomas W.},
     title = {A {Pseudofunction} on a {Helson} {Set.} {I}},
     booktitle = {Pseudofunctions and Helson Sets},
     series = {Ast\'erisque},
     pages = {3--224},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {5},
     year = {1973},
     mrnumber = {404974},
     zbl = {0281.43004},
     language = {en},
     url = {http://archive.numdam.org/item/AST_1973__5__3_0/}
}