A simple hyperchaotic circuit with coexisting multiple bifurcations and offset boostingYan Yang, Kangcheng Ren, Hui Qian and Xiaoyong YaoEur. Phys. J. Special Topics, 229 6-7 (2020) 1163-1174DOI: https://doi.org/10.1140/epjst/e2020-900245-7