@article{02146818,
title = {Convexity, valuations and Pr\"ufer extensions in real algebra.},
journal = {Documenta Mathematica},
volume = {10},
year = {2005},
pages = {1-109},
zbl = {1120.13025},
language = {en},
url = {http://dml.mathdoc.fr/item/02146818}
}
Knebusch, Manfred; Zhang, Digen. Convexity, valuations and Prüfer extensions in real algebra.. Documenta Mathematica, Tome 10 (2005) pp. 1-109. http://gdmltest.u-ga.fr/item/02146818/