TY  - BOOK
AU  - Barker,V.A (ed)
TI  - Sparse matrix techniques: advanced course held at the technical university of Denmark, Copenhagen, August 9-12,1976
T2  - Lecutre notes in mathematics 572
SN  - 3540081305
U1  - 11.14 
PY  - 1977///
CY  - Berlin
PB  - Springer
ER  -