Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MAN_1971__191_162138, author = {M. NEWMAN}, title = {Roots of {Unity} and {Covering} {Sets.}}, journal = {Mathematische Annalen}, pages = {279--282}, publisher = {mathdoc}, volume = {191}, year = {1971}, zbl = {0203.35205}, url = {http://geodesic.mathdoc.fr/item/MAN_1971__191_162138/} }
M. NEWMAN. Roots of Unity and Covering Sets.. Mathematische Annalen, Tome 191 (1971), pp. 279-282. http://geodesic.mathdoc.fr/item/MAN_1971__191_162138/