Géczi, G., Benécs, J., Kristóf, K. and Horváth, M. 2018. High concentrations of radon and carbon dioxide in energy-efficient family houses without heat recovery ventilation. Journal of Environmental Engineering and Landscape Management. 26, 1 (Mar. 2018), 64-74. DOI:https://doi.org/10.3846/16486897.2017.1347095.