TY  - BOOK
AU  - DUFF, I.S , REID, V.K , ERISMAN, A.M
TI  - DISCREAT METHDS FOR SPARSE MATRICES
SN  - 0-19-853408-6
U1  - 512.9434 DUF'D 
PY  - 1986///
CY  - OXFORD
PB  - CLARENDON
ER  -