1. Approximation Methods for Solution of Differential and Integral Equations;Mikhlin,1967
2. The Numerical Treatment of Differential Equations;Collatz,1966
3. The Method of Weighted Residual and Vaiational Principles;Finlayson,1972
4. The Theory of Spline and Their Applications;Ahlberg,1967
5. A collocation method for boundary value problems using spline function;Ito,1972