Atashrooz, Jaleh, and Abdolkarim Zare. “Nano-[SiO2@R-Im-SO3H][CF3COO]: An Effectual Catalyst for the Production of Bis-Coumarins and N,N′-Alkylidene Bisamides”. Iranian Journal of Catalysis, vol. 12, no. 2, Mar. 2022, https://doi.org/10.30495/ijc.2022.689835.