Esar, S. E., S. K. Kamal, and R. A. K. Sherwani. “Comparison of Fractional Splines With Polynomial Splines; An Application on under-Five year’s Child Mortality Data in Pakistan (1960-2012)”. Pakistan Journal of Statistics and Operation Research, Vol. 13, no. 2, June 2017, pp. 439-48, doi:10.18187/pjsor.v13i2.1841.