@incollection{AST_1973__5__225_0,
     author = {Kaufman, Robert},
     title = {M-sets and distributions},
     booktitle = {Pseudofunctions and Helson Sets},
     series = {Ast\'erisque},
     pages = {225--230},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {5},
     year = {1973},
     zbl = {0281.43006},
     language = {en},
     url = {http://www.numdam.org/item/AST_1973__5__225_0/}
}