Simplified chaotic oscillators with two-dimensional offset boosting Wangyu Liu, Chunbiao Li, Yikai Gao, Xin Zhang, Yuanxiao Xu and Jitong Xu Eur. Phys. J. Plus, 139 7 (2024) 596 Published online: 08 July 2024 DOI: 10.1140/epjp/s13360-024-05393-8