1. Thermal decomposition of analytically important thiocyanatochromates(III). Part 1
2. Thermal decomposition of analytically important thiocyanatochromates(III). Part 2
3. G. Brauer, Handbook of Preparative Inorganic Chemistry, Vol. 2, Academic Press, New York, 1965, p. 1374.
4. G.O. Müller, Praktikum der quantitativen chemischen analyse, S. Hirzel Verlag, Leipzig, 1967, p. 342.
5. F.J. Welcher, The Analytically Uses of Ethylenediamine Tetraacetic Acid, Van Nostrand, Princeton, NJ, 1958, p. 149.