Mugaguren, Mikel Lumbreras, Roberto Garay, and Koldobika Martin. 2018. “Unglazed Solar Thermal Systems for Building Integration, Coupled With District Heating Systems. Conceptual Definition, Cost and Performance Assessment”. Journal of Facade Design and Engineering 6 (2):119-31. https://doi.org/10.7480/jfde.2018.2.2085.