List of Articles Fe3O4@SiO2@PrSO3H Open Access Article Abstract Page Full-Text 1 - A green method for the synthesis of indeno[1,2-b]pyridines using Fe3O4@SiO2@PrSO3H as a nanomagnetic catalyst Zohreh Kheilkordi Ghodsi Mohammadi Ziarani Alireza Badiei Hossein Vojoudi