A finite element model development for simulation of the impact of slab thickness, joints, and membranes on indoor radon concentration.

E. Muñoz, B. Frutos, M. Olaya, J. Sánchez

Journal of Environmental Radioactivity.  Volume 177, October 2017, Pages 280–289

https://doi.org/10.1016/j.jenvrad.2017.07.006