Gumgum, Bahattin, Osman Akba, Akin Baysal, and Candan Hamamci. “Synthesis and Characterization of Polyoxometallate Compounds of Amine and Phosphine With Molybdovanadophosphoric Acid in Keggin Type”. Asian Journal of Chemistry 18, no. 3 (March 30, 2010): 1862–1866. Accessed November 29, 2024. https://asianpubs.org/index.php/ajchem/article/view/20889.