Ulusoy, Halil İbrahim, and Ramazan Gürkan. 2009. “A Novel Indicator Reaction for the Catalytic Determination of V(V) at Ppb Levels by the Kinetic Spectrophotometric Method”. Eclética Química 34 (4):49-64. https://doi.org/10.26850/1678-4618eqj.v39.4.2009.p49-64.