Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MAN_1965__158_161273, author = {E.R. WILLARD}, title = {Properties of {Projective} {Generators.}}, journal = {Mathematische Annalen}, pages = {352--364}, publisher = {mathdoc}, volume = {158}, year = {1965}, zbl = {0131.27303}, url = {http://geodesic.mathdoc.fr/item/MAN_1965__158_161273/} }
E.R. WILLARD. Properties of Projective Generators.. Mathematische Annalen, Tome 158 (1965), pp. 352-364. http://geodesic.mathdoc.fr/item/MAN_1965__158_161273/