@incollection{AST_1987__147-148__209_0,
     author = {Sinnott, W.},
     title = {On a theorem of {L.} {Washington}},
     booktitle = {Journ\'ees arithm\'etiques de Besan\c{c}on},
     series = {Ast\'erisque},
     pages = {209--224},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {147-148},
     year = {1987},
     zbl = {0616.12004},
     language = {en},
     url = {http://archive.numdam.org/item/AST_1987__147-148__209_0/}
}