@incollection{AST_1979__61__35_0,
     author = {Boyd, David W.},
     title = {Pisot sequences, {Pisot} numbers and {Salem} numbers},
     booktitle = {Journ\'ees Arithm\'etiques de Luminy},
     series = {Ast\'erisque},
     pages = {35--42},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {61},
     year = {1979},
     zbl = {0402.12001},
     language = {en},
     url = {http://archive.numdam.org/item/AST_1979__61__35_0/}
}