Srivastava, H. M., K. M. Saad, and E. H. F. Al-Sharif. “A New Analysis of the Time-Fractional and Space-Time Fractional-Order Nagumo Equation”. Journal of Informatics and Mathematical Sciences, vol. 10, no. 4, Dec. 2018, pp. 545-61, doi:10.26713/jims.v10i4.961.