• Present energy performance requirements and nZEB targets in some selected countriesKurnitski, Jarek; Feldmann, ChristianCost optimal and nearly zero-energy buildings (nZEB) : definitions, calculation principles and case studies2013 / p. 31-46 : ill https://doi.org/10.1007/978-1-4471-5610-9_3 https://www.scopus.com/sourceid/21100248905 https://www.scopus.com/record/display.uri?eid=2-s2.0-84986903648&origin=resultslist&sort=plf-f&src=s&sot=b&sdt=b&s=DOI%2810.1007%2F978-1-4471-5610-9_3%29