TY  - BOOK
AU  - Ortiz Eduardo L Ed.
TI  - Numerical approximation of partial differential equations
T2  - North-Holland Mathematics Studies; 133
U1  - B334:1, M7 
PY  - 1987///
CY  - Amsterdam
PB  - North Holland        
KW  - Differential equations
N1  - Includes bibliography
ER  -