1. Regulation of the Ministry of Internal Affairs and Administration, Dz.U.132 item 878, 1997.
2. Directive of the European Parliament and of the Council on the energy performance of buildings, COM(2001) 226 final, 2001/0098 (COD), 2001.
3. Thermal Modernisation Law. USTAWA, o wspieraniu przedsiêwziêæ termomodernizacyjnych (Dz.U. Nr 162, poz 1121), with changes Ustawa 21.06.2001 (Dz.U. Nr 76, poz . 808), 18.12.1998.
4. Green Building Challenge 2000,2000
5. Handbook of sustainable building;Anink,1998