IntroductionKurnitski, JarekCost Optimal and Nearly Zero-Energy Buildings (nZEB)2015 / p. 1-5 https://doi.org/10.1007/978-1-4471-5610-9_1 Article collection metrics at Scopus Article at Scopus PrefaceKurnitski, JarekCost Optimal and Nearly Zero-Energy Buildings (nZEB)2013 / p. v-vi https://link.springer.com/book/10.1007/978-1-4471-5610-9 Article collection metrics at Scopus Article at Scopus