1. Energy performance certification and labelling in the Lithuanian building sector;Uyterlinde,2002
2. Indicators for energy performance efficiency certification in Lithuanian residential buildings;Juodis;Journal of Civil Engineering and Management,2003
3. STR 2.05.01:1999, Thermal Technique of Building Envelope, Vilnius, 1999, p. 133 (Lithuanian National Building Regulation, in Lithuanian).
4. SNIP II-3-79, Строительная теплотехника, Gosstroi SSSR, Moscow, 1986, p. 32.
5. Directive of European Parliament and of the Council of the Energy Performance of Buildings, the draft has adopted by the Council of Energy Ministers of 4 December 2001.