Danish, Estonian and Finnish NZEB requirements comparison with European Commission recommendations for office buildings in Nordic and Oceanic climatesRaimo Simson, Endrik Arumägi, Kirsten Engelund Thomsen, Kim Bjarne Wittchen and Jarek KurnitskiE3S Web Conf., 356 (2022) 01017DOI: https://doi.org/10.1051/e3sconf/202235601017