Thermal model of building integrated air type photovoltaic-thermal system under varying conditionsJagomägi, AndriEU PVSEC 2016 : 32nd European Photovoltaic Solar Energy Conference and Exhibition : 21-24 June 2016, München, Germany2016 / p. 2740-2745 http://dx.doi.org/10.4229/EUPVSEC20162016-6AV.5.8