Nasiri, A., S. Makouei, and T. Y. Rezaii. “Relative Humidity FOS Design Using Spherical Hydrogel on No-Core Multimode Fiber”. Advanced Electromagnetics 8, no. 5 (January 10, 2020): 65–71. Accessed December 25, 2025. https://www.aemjournal.org/index.php/AEM/article/view/1288.