1. Ahmad, K., Shah, F.A.: Introduction to Wavelets with Applications. Real World Education Publishers, New Delhi (2013)
2. Amiraliyev, G.M., Cimen, E.: Numerical method for a singularly perturbed convection–diffusion problem with delay. Appl. Math. Comput. 216, 2351–2359 (2010)
3. Andargie, A., Reddy, Y.N.: An exponentially fitted special second-order finite difference method for solving singular perturbation problems. Appl. Math. Comput. 190, 1767–1782 (2007)
4. Andargie, A., Reddy, Y.N.: Fitted fourth-order tridiagonal finite difference method for singular perturbation problems. Appl. Math. Comput. 192, 90–100 (2007)
5. Aziz, T., Khan, A.: A spline method for second-order singularly perturbed boundary-value problems. J. Comput. Appl. Math. 147, 445–452 (2002)