%0 Journal Article %A R. I. Parovik %A I. A. Iljin %A P. P. Firstov %T Generalized one-dimensional model for mass transfer of radon ${}^222$Rn in ground and exhalation it in the surface layer of the atmosphere %J Matematičeskoe modelirovanie %D 2007 %P 43-50 %V 19 %N 11 %I mathdoc %U http://geodesic.mathdoc.fr/item/MM_2007_19_11_a4/ %G ru %F MM_2007_19_11_a4