Géczi, G., J. Benécs, K. Kristóf, and M. Horváth. “High Concentrations of Radon and Carbon Dioxide in Energy-Efficient Family Houses Without Heat Recovery Ventilation”. Journal of Environmental Engineering and Landscape Management, vol. 26, no. 1, Mar. 2018, pp. 64-74, doi:10.3846/16486897.2017.1347095.