1. ‘The National Waste Management Plan 2010’, The Council of Ministers Resolution No. 233; 29 December 2006.
2. ‘The National Urban Wastewater Treatment Program’, Regulation of the Ministry of Environment, Republic of Poland, Warsaw; 2003.
3. Pająk T. Thermal conversion as the part of the system of municipal waste and sewage sludge, VI International Scientific-Technical Conference ‘Environment Managing on industrialized areas - modern systems, techniques and technologies’, Institute of Mining Technology, Gliwice; 2005.
4. Regulation of the Minister of the Environment, Republic of Poland, Catalog of the waste; 27th of September 2001.
5. Resolution of the Parliament of the Republic of Poland. ‘The adoption of the National Ecological Policy for 2003–2006, taking into account the prospects for the years 2007–1010’; 8th May 2003.