Zhang Duan, Shi Jia-Qin, Sun Ying, Yang Xu-Hua, Ye Lei. Lorenz chaotic system generated from Shimizu-Morioka system or Finance system: Differential geometric approachJ. Acta Physica Sinica, 2019, 68(24): 240502. DOI: 10.7498/aps.68.20190919