TY  - BOOK
AU  - Retnhardt H J
TI  - Analysis of approxiamtion methods for differential and integral equations
T2  - Applied Mathematical Sciences; 57
U1  - B1140K33, M5 
PY  - 1985///
CY  - New York    
PB  -  Springer-Verlag        
KW  -  differential equation
KW  - Approximation method
N1  - Includes bibliography
ER  -