Dynamical analysis and fixed-time synchronization of a chaotic system with hidden attractor and a line equilibriumHuaigu Tian, Zhen Wang, Hui Zhang, Zelin Cao and Peijun ZhangEur. Phys. J. Spec. Top., 231 11-12 (2022) 2455-2466DOI: https://doi.org/10.1140/epjs/s11734-022-00553-2