@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/