Scientific journal publication First estimates of fumarolic SO2 emission rates from Putana volcano, Chile, using an ultraviolet imaging Camera. Stebel, K.; Amigo, A.; Thomas, H.; Prata, A.J. Publication details Journal: J. Volcanol. Geoth. Res., 300, 112–120, 2015 DOI: 10.1016/j.jvolgeores.2014.12.021