Barzegar M, Zare A, Ghobadpoor A, Dianat M. Preparation, Characterization and Application of a Novel Organic-Inorganic Hybrid Magnetic Nanomaterial as a Highly Efficient Catalyst for the Synthesis of Bis-Coumarins. Iran. J. Catal. 2022;12(1). doi:10.30495/ijc.2022.688895