Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{CMUC_1993__34_2_a2, author = {Kepka, Tom\'a\v{s}}, title = {Semirings whose additive endomorphisms are multiplicative}, journal = {Commentationes Mathematicae Universitatis Carolinae}, pages = {213--219}, publisher = {mathdoc}, volume = {34}, number = {2}, year = {1993}, mrnumber = {1241729}, zbl = {0787.16029}, language = {en}, url = {http://geodesic.mathdoc.fr/item/CMUC_1993__34_2_a2/} }
Kepka, Tomáš. Semirings whose additive endomorphisms are multiplicative. Commentationes Mathematicae Universitatis Carolinae, Tome 34 (1993) no. 2, pp. 213-219. http://geodesic.mathdoc.fr/item/CMUC_1993__34_2_a2/