TY  - BOOK
TI  - Oriented matroids
T2  - Encyclopedia of mathematics and its applications
SN  - 052177750X
PY  - 1999///
CY  - Cambridge ; | New York
PB  - Cambridge University Press
UR  - http://www.loc.gov/catdir/description/cam021/00709563.html | http://www.loc.gov/catdir/toc/cam027/00709563.html
ER  -