Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{SF_1975__11_134128, author = {G. AKST and T.P. Dence}, title = {Idempotent {Endomorphisms} on {Standard} {Threads.}}, journal = {Semigroup forum}, pages = {14--21}, publisher = {mathdoc}, volume = {11}, year = {1975}, zbl = {0299.20053}, url = {http://geodesic.mathdoc.fr/item/SF_1975__11_134128/} }
G. AKST; T.P. Dence. Idempotent Endomorphisms on Standard Threads.. Semigroup forum, Tome 11 (1975), pp. 14-21. http://geodesic.mathdoc.fr/item/SF_1975__11_134128/