TY  - BOOK
AU  - Prestel, Alexander and Delzell, Charles N.
AU  - Delzell, Charles N. ; jt. auth
TI  - Positive polynomials; from Hilbert's 17th problem to real algebra
T2  - Springer monographs in Mathematics
SN  - 3540412158
U1  - 512 
PY  - 2001///
CY  - Berlin
PB  - Springer-Verlag
ER  -