Hajipour, Abdol Reza, Sheikhan, Nafisehsadat, Alaei, Mohammad Ali, Zarei, Amin (2015) ‘Brønsted acidic ionic liquid as the efficient and reusable catalyst for synthesis of coumarins via Pechmann condensation under solvent-free conditions’, Iranian Journal of Catalysis, 5(3), pp. 231-236. doi: