TY  - BOOK
AU  - Duff,I S  .
AU  - Erisman,A M  .
AU  - Reid,J K  .
TI  - Direct methods for sparse matrices / 
T2  - Monoghaph and numerical analysis, 
SN  - 0198534086
U1  - 512.9434 
PY  - 1986///
CY  - Oxford : 
PB  - Clarendon press , 
KW  - SPARSE MATRICES
N1  - Includes index and references
ER  -