Samadizadeh M. Silica Supported H3PW12O40: An Efficient Catalyst for the Synthesis of Spirooxindoles via a One-Pot Reaction under Solvent Free Conditions. ajc [Internet]. 2012 Sep. 8 [cited 2024 Nov. 25];25(2):926-8. Available from: https://asianpubs.org/index.php/ajchem/article/view/25_2_75