nZEB renovation of multi-storey building with prefabricated modular panelsPihelo, Peep; Kalamees, Targo; Kuusk, KalleIOP conference series : materials science and engineering2017 / art. 012056, 8 p. : ill https://doi.org/10.1088/1757-899X/251/1/012056 Conference proceedings at Scopus Article at Scopus Article at WOS