@article{GDZPPN002192721,
title = {Real closures of commutative rings. II.},
journal = {Journal f\"ur die reine und angewandte Mathematik},
volume = {281},
year = {1976},
pages = {278-313},
zbl = {0332.13016},
url = {http://dml.mathdoc.fr/item/GDZPPN002192721}
}
Knebusch, Manfred. Real closures of commutative rings. II.. Journal für die reine und angewandte Mathematik, Tome 281 (1976) pp. 278-313. http://gdmltest.u-ga.fr/item/GDZPPN002192721/