List of Articles Caro’s acid-silicagel Open Access Article Abstract Page Full-Text 1 - Caro’sacid-silicagel: An Efficient and Reusable Catalyst for the Synthesis of 2, 4, 5- Trisubstituted Imidazoles under Solvent-free Conditions Khalil Pourshamsian Naser Montazeri Sadegh Asadyan