@article{GDZPPN002228734,
title = {On the seperation of basic semialgebraic sets by polynomials.},
journal = {Manuscripta mathematica},
volume = {61},
year = {1988},
pages = {497-508},
zbl = {0647.14009},
url = {http://dml.mathdoc.fr/item/GDZPPN002228734}
}
Bröcker, Ludwig. On the seperation of basic semialgebraic sets by polynomials.. Manuscripta mathematica, Tome 61 (1988) pp. 497-508. http://gdmltest.u-ga.fr/item/GDZPPN002228734/