Aroca, German E., Homero Urrutia, Dariela Núñez, Patricio Oyarzún, Alejandra Arancibia, and Karlo Guerrero. 2007. “Comparison on the Removal of Hydrogen Sulfide in Biotrickling Filters Inoculated With Thiobacillus Thioparus and Acidithiobacillus Thiooxidans”. Electronic Journal of Biotechnology 10 (4). Valparaíso, Chile:0-0. https://preprints.pucv.cl/index.php/ejbiotechnology/article/view/v10n4-6.