Haanes, Hallvard, Trine Kolstad, Ingvild Egen Finne, and Bård Olsen. “The Effect of New Building Regulations on Indoor Radon in Radonprone Municipalities”. Journal of the European Radon Association 3 (January 11, 2022). Accessed January 27, 2022. https://radonjournal.net/index.php/radon/article/view/7886.