@article{article310c1cd7,
title   = {A general solution in the cylindrical coodinates system for the diffusion of a radionuclide in homogeneous and isotropic solids},
author = {Brenha Ribeiro, Fernando},
year = {1999},
doi = {10.1016/s1350-4487(99)00037-2},
journal   = {Radiation Measurements}
}