Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{JRAM_1975__0274_0275_151563, author = {Manfred Knebusch}, title = {Real closures of commutative rings. {I.}}, journal = {Journal f\"ur die reine und angewandte Mathematik}, pages = {61--89}, publisher = {mathdoc}, volume = {0274_0275}, year = {1975}, zbl = {0331.13007}, url = {http://geodesic.mathdoc.fr/item/JRAM_1975__0274_0275_151563/} }
Manfred Knebusch. Real closures of commutative rings. I.. Journal für die reine und angewandte Mathematik, 0274_0275 (1975), pp. 61-89. http://geodesic.mathdoc.fr/item/JRAM_1975__0274_0275_151563/