Nearly zero energy renovation concepts for apartment buildingsKalle Kuusk, Jens Naumann, Annina Gritzki, Clemens Felsmann, Michele De Carli, Massimo Tonon and Jarek KurnitskiE3S Web Conf., 172 (2020) 18009DOI: https://doi.org/10.1051/e3sconf/202017218009
