Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MOMA_1971__75_177529, author = {T.W. Cusick}, title = {Badly {Approximable} {Formal} {Power} {Series.}}, journal = {Monatshefte f\"ur Mathematik}, pages = {26--30}, publisher = {mathdoc}, volume = {75}, year = {1971}, zbl = {0208.31003}, url = {http://geodesic.mathdoc.fr/item/MOMA_1971__75_177529/} }
T.W. Cusick. Badly Approximable Formal Power Series.. Monatshefte für Mathematik, Tome 75 (1971), pp. 26-30. http://geodesic.mathdoc.fr/item/MOMA_1971__75_177529/