1. Technology of Chromium Compounds;Awierbuch,1973
2. Treatment of chromic tannery wastes using coal ashes from fluidized bed combustion of coal;Bulewicz;Ind. Eng. Chem. Res.,1997
3. Cholewa, J., Mazanek, C., 2000. Project No. C-1/137/98, Report from realization of the stages 3–7, Cracow University of Technology (unpublished materials).
4. Encyclopedia of Chemical Technology, Chromium Compound, Vol. 6,1994
5. Gollinger, M., Kowalski, Z., Mazanek, C., 1999. Management system of chrome solid wastes realized in Poland. Energy, Environment and Technological Innovation, 4th International Conference, Universita Di Roma “La Sapienza”, Rome, Italy, 19–24 September.