The following publications are possibly variants of this publication:
- Quartic Non-Polynomial Splines Approach to the Solution of a System of Second-Order Boundary-Value ProblemsSiraj-Ul-Islam, Syed Ikram A. Tirmizi, Fazal-i-Haq. ijhpca, 21(1):42-49, 2007. [doi]
- Non polynomial spline approach to the solution of a system of third-order boundary-value problemsSiraj-Ul-Islam, Muhammad Azam Khan, Syed Ikram A. Tirmizi, Edward H. Twizell. amc, 168(1):152-163, 2005. [doi]
- Quadratic non-polynomial spline approach to the solution of a system of second-order boundary-value problemsSiraj-Ul-Islam, Muhammad Aslam Noor, Syed Ikram A. Tirmizi, Muhammad Azam Khan. amc, 179(1):153-160, 2006. [doi]
- Nonpolynomial spline approach to the solution of a system of second-order boundary-value problemsSiraj-Ul-Islam, Syed Ikram A. Tirmizi. amc, 173(2):1208-1218, 2006. [doi]
- Non-polynomial sextic spline approach for the solution of fourth-order boundary value problemsArshad Khan, Pooja Khandelwal. amc, 218(7):3320-3329, 2011. [doi]
- A smooth approximation for the solution of special non-linear third-order boundary-value problems based on non-polynomial splinesSiraj-Ul-Islam, Syed Ikram A. Tirmizi. ijcm, 83(4):397-407, 2006. [doi]