Jianmeng Cui, Wei Gou & Zhen Jin. (2023). Hopf Bifurcation and Its Normal Form of Reaction Diffusion Systems Defined on Directed Networks.
            <i>CSIAM Transactions on Applied Mathematics</i>. <i>4</i> (3).
            619-652.
         doi:10.4208/csiam-am.SO-2022-0047