Chun Liu 0009 Cheng Wang 0015 Steven M. Wise Xingye Yue Shenggao Zhou A Second Order Accurate, Positivity Preserving Numerical Method for the Poisson-Nernst-Planck System and Its Convergence Analysis. 23 2023 October 97 J. Sci. Comput. 1 https://doi.org/10.1007/s10915-023-02345-9 db/journals/jscic/jscic97.html#LiuWWYZ23