Zhang H, Peng X, Zhao S. Metal Ion-Exchanged Bentonites as Useful Solid Catalysts for Regioselective Nitration of Toluene. ajc [Internet]. 2013 Jan. 9 [cited 2024 Jul. 21];25(6):3511-2. Available from: https://asianpubs.org/index.php/ajchem/article/view/25_6_139