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2. Titration of colored and turbid solutions with the aid of fluorescent indicators;Koremann;Tr. Po. Khim,1962
3. 1,8-Dihydroxyanthraquinone-Mg(II) complex. Spectrophotometric study. Determination of Mg(II);Román Ceba;Microchem. J,1982
4. Román Ceba, M., Fernández-Gutiérrez, A., and Mahedero, M. C., Fluorimetric determination of Mg(II) traces with 1,8-dihydroxyanthraquinone. Mikrochim. Acta, in press.
5. A new spectrophotometric for differentiating mononuclear and polynuclear complexes and for determining their extraction constants;Román Galán;Talanta,1980