TY - JOUR AU - Safari, Javad AU - Zarnegar, Zohre TI - Magnetic Fe3O4 nanoparticles as a highly efficient catalyst for the synthesis of imidazoles under ultrasound irradiation JO - Iranian Journal of Catalysis VL - 2 IS - 3 SP - 121 EP - 128 PY - 2012 DO - ER -