Jianhua Wang Wang, J. H., & Pao, C. V. (2000). Finite difference reaction-diffusion equations with nonlinear diffusion coefficients. NUMERISCHE MATHEMATIK, 85(3), 485–502. https://doi.org/10.1007/s002110000140 Liu, R. X., Zhang, M. P., Wang, J., & Liu, X. Y. (1999). The designing approach of difference schemes by controlling the remainder-effect. International Journal for Numerical Methods in Fluids, 31(2), 523–533. Wang, J. H. (1998). Monotone method for diffusion equations with nonlinear diffusion coefficients. NONLINEAR ANALYSIS-THEORY METHODS & APPLICATIONS, 34(1), 113–142. https://doi.org/10.1016/S0362-546X(97)00679-2