Li , XiaoQiao , Zhonghua and Zhang , Hui. (2017). A Second-Order Convex Splitting Scheme for a Cahn-Hilliard Equation with Variable Interfacial Parameters.
            <i>Journal of Computational Mathematics</i>. <i>35</i> (6).
            693-710.
         doi:10.4208/jcm.1611-m2016-0517