TY  - BOOK
AU  - Ziegler Gunter M
TI  - Lectures on polytopes
T2  - Graduate Texts IN Mathematics
SN  - 354094365X
U1  - B25,1, N5 
PY  - 1995///
CY  - New York
PB  - Springer Verlag        
KW  -  Higher Algebra
KW  - Economics
N1  - Bib:p325-64
ER  -