Tang, E. L., C. J. Liu, and Y. H. Zhang. “Risk Hedging Logic and Theoretical Boundary of Options and Futures Instruments”. Advanced Electromagnetics 15, no. 3 (August 13, 2026): 2475–2481. Accessed August 18, 2026. https://www.aemjournal.org/index.php/AEM/article/view/3301.