TY  - BOOK
AU  - Fichera G
AU  -  Fraffi Sandro
TI  - Numerical and quantitative analysis
T2  - Surveys and reference works in mathmatics; 33
U1  - B33:1, L81 
PY  - 1978///
CY  - London
PB  - Pitaman         
KW  - Differential equations
ER  -