Zhao, Shuangrui, et al. “Turing–Hopf Bifurcation and Spatiotemporal Patterns in a Gierer–Meinhardt System With Gene Expression Delay”. Nonlinear Analysis: Modelling and Control, vol. 26, no. 3, May 2021, pp. 461-8, https://doi.org/10.15388/namc.2021.26.23054.