1. K. B. Yatsimrskii and V. P. Vasilev, Instability Constants of Complex Compounds, Plenum Press, NY, 1960.
2. S. J. Ashcroft and C. T. Mortimer, Thermochemistry of Transition Metal Complexes, Acad. Press, London 1970.
3. IUPAC Chemical Data Series n∘. 22. Stability Constants of Metal Ions Complexes, By D. D. Perrin, Pergamonn Press, NY, 1979.
4. J. J. Christensen, D. J. Eatough and R. M. Izatt, Handbook of Metal Ligand Heats, Marcell Dekker Inc. NY, 1975.
5. A. E. Martell and R. M. Smith, Critical Stability Constants, Vol B. Plenumm Press, NY, 1977.