List of Articles Sahar Shokrollahi Article 1 - Citric acid as an efficient and green catalyst for the synthesis of hexabenzylhexaazaisowurtzitane (HBIW) Sahar Shokrollahi Ali Ramazani Seyed Jamal Tabatabaei Rezaei Asemeh Mashhadi Malekzadeh Pegah Azimzadeh Asiabi Sang Woo Joo Iranian Journal of Catalysis , Issue 1 , Year , Winter 2016