On preordered fields related to Hilbert's 17th problem.
Guangxin, Zeng
Mathematische Zeitschrift, Tome 207 (1991), p. 145-152 / Harvested from Göttinger Digitalisierungszentrum
Access to full text
Publié le : 1991-01-01
EUDML-ID : urn:eudml:doc:174214 
@article{GDZPPN002438380,
     title = {On preordered fields related to Hilbert's 17th problem.},
     journal = {Mathematische Zeitschrift},
     volume = {207},
     year = {1991},
     pages = {145-152},
     zbl = {0691.12009},
     url = {http://dml.mathdoc.fr/item/GDZPPN002438380}
}

Guangxin, Zeng. On preordered fields related to Hilbert's 17th problem.. Mathematische Zeitschrift, Tome 207 (1991) pp. 145-152. http://gdmltest.u-ga.fr/item/GDZPPN002438380/