TY  - BOOK
AU  - Hebisch U
AU  - Weinert H J
TI  - Semirings: algebraic theory and applications in computer science
SN  - 981-02-3601-8
U1  - 512.4 
PY  - 1998///
CY  - Singapore
PB  - World Scientific
KW  - Semirings
ER  -