• Cost optimal energy performanceKurnitski, JarekCost optimal and nearly zero-energy buildings (nZEB) : definitions, calculation principles and case studies2013 / p. 47-56 : ill https://doi.org/10.1007/978-1-4471-5610-9_4 https://www.scopus.com/sourceid/21100248905 https://www.scopus.com/record/display.uri?eid=2-s2.0-85042920966&origin=resultslist&sort=plf-f&src=s&sot=b&sdt=b&s=DOI%2810.1007%2F978-1-4471-5610-9_4%29