TY  - BOOK
AU  - Prestel,A.
AU  - Delzell,Charles N.
TI  - Positive polynomials: from Hilbert's 17th problem to real algebra 
SN  - 9783540412151
PY  - 2001///
CY  - Berlin, New York
PB  - Springer
KW  - Polynomials
KW  - Topological fields
KW  - Semialgebraic sets
ER  -