• IntroductionKurnitski, JarekCost Optimal and Nearly Zero-Energy Buildings (nZEB)2015 / p. 1-5 https://doi.org/10.1007/978-1-4471-5610-9_1 https://www.scopus.com/sourceid/21100248905 https://www.scopus.com/record/display.uri?eid=2-s2.0-85042912606&origin=resultslist&sort=plf-f&src=s&sot=b&sdt=b&s=DOI%2810.1007%2F978-1-4471-5610-9_1%29