Title Nanomagnetically modified sulfuric acid (c-Fe2O3@SiO2-OSO3H): an efficient,fast, and reusable green catalyst for the Ugi-likeGroebke-Blackburn-Bienaymé three-component reaction under solvent-freeconditions Type JournalPaper Keywords Not Registered! Abstract Not Registered! Researchers (Fifth Researcher), (Fourth Researcher), (Third Researcher), (Second Researcher), Sadegh Rostamnia (First Researcher)