- Fadavipoor, Elham., et all. "Imidazolium Hydrogen Sulphate Supported on Copper Oxide Nanoparticles as an efficient simple Heterogeneous Acidic Catalyst for Multi-component Synthesis of 1, 4- dihydro Pyrano [2, 3-c] pyrazoles Derivatives." Iranian Journal of Catalysis, vol. 11, no. 2, pp. 165 - 174,