Maleki, Ali, Reza Ghalavand, and Razieh Firouzi-Haji. “A Novel and Eco-Friendly O-Phenylendiamine Stabilized on Silica-Coated Magnetic Nanocatalyst for the Synthesis of Indenoquinoline Derivatives under Ultrasonic-Assisted Solvent-Free Conditions”. Iranian Journal of Catalysis 8, no. 3 (February 3, 2024). Accessed June 9, 2026. https://oiccpress.com/ijc/article/view/4006.