Rodrigues, Isaias Alves, Stéfane Oliveira de Lira, Tiago dos Santos Estrela, Cailon França de Castro, and Valdeilson Souza Braga. 2017. “Rice Husk Ash Modified With Vanadium Pentoxide”. Orbital: The Electronic Journal of Chemistry 9 (2), 111-14. https://periodicos.ufms.br/index.php/orbital/article/view/16504.