Antunes, P. A., Bannach, G., Chierice, G. O. and Cavalheiro, Éder T. G. (2009) “Direct and simultaneous spectrophotometric determination of Ni (II) and Co (II) using diethanoldithiocarbamate as complexing agent”, Eclética Química, 34(2), pp. 07–13. doi: 10.26850/1678-4618eqj.v34.2.2009.p07-13.