[Biskupski, A., Malinowski, P. & Kopeć, A., (2003). Utilization of waste acids from the nitration process for phosphorus containing fertilizers. In H. Górecki & Z. Dobrzański (Eds.), Chemicals in sustainable agriculture, Chemistry for Agriculture, vol. 4 (pp. 65-69). Praha, Cz: Czech-Pol Trade.]Search in Google Scholar
[Biskupski, A., Malinowski, P., Igras, J., Borowik, M., Podleśna, A. & Schab, S. (2009). Nitrogen granular fertilizers-current status and perspectives of development in Poland. Przem. Chem. 12, 1337-1341. in Polish.]Search in Google Scholar
[Regulation (EC) No 2003/2003 of the European Parliament and of the Council of 13 October 2003 relating to fertilizers. Official Journal of the European Union L 304/1.]Search in Google Scholar
[Pawlikowski, S. & Szymonik, S. (1959). About the methodology of determining the hygroscopicity. Przem. Chem. 8, 598-599. in Polish.]Search in Google Scholar
[Lance, G. E. N. (1996). Fertilizer Blending-Theory. The International Fertilizer Society-Proceeding 387. York, UK: IFS.]Search in Google Scholar
[Malinowski, P., Biskupski, A. & Głowiński, J. (2007). Preparation methods of calcium sulphate and urea adduct. Pol. J. Chem. Tech. 9(4), 111-114. DOI: 10.2478/v10026-007-0102-z.10.2478/v10026-007-0102-z]Search in Google Scholar