Mohammed, Miami, and Ahmad K. Ahmad. “Multicore Photonic Crystal Fibres Designing for Multiplexers and Demultiplexers Applications”. Rafidain Journal of Science 29, no. 3 (September 1, 2020): 61–72. Accessed September 10, 2025. https://edusj.uomosul.edu.iq/index.php/rsci/article/view/47272.