SAMADIZADEH, Marjaneh. H3PW12O40: An Efficient Catalyst for the Synthesis of Spirooxindoles Under Ultrasound Irradiation. Asian Journal of Chemistry, [S. l.], v. 25, n. 12, p. 6619–6621, 2013. DOI: 10.14233/ajchem.2013.14390. Disponível em: https://asianpubs.org/index.php/ajchem/article/view/25_13_30. Acesso em: 23 jul. 2024.