TY  - BOOK
AU  - J. Ortega
TI  - Numerical analysis: A second course (E Book)
SN  - 9780898712506
U1  - 519.4 
PY  - 1990///
CY  - 
PB  - SIAM
KW  - Numerical analysis
N1  - http://portal.igpublish.com/iglibrary/search/?35
ER  -