1. An extension of Ortiz' recursive formulation of the Tau method to certain linear systems of ordinary differential equations;Crisci;Math. Comput.,1983
2. Numerical solution of systems of ordinary differential equations with the Tau method;Freilich;Math. Comput.,1982
3. Trigonometric interpolation of empirical and analytical functions;Lanczos;J. Math. Phys.,1938
4. Dependence of the local truncation error on the choice of perturbation term in the step by step Tau methods for systems of differential equations;Namasivayam;Res. Rep. NAS 06-09-81,1982
5. Best approximation and the numerical solution of partial differential equations;Namasivayam;Portugalia Mathematica,1984