@misc{misce88aa08d,
title   = {Evaluation of x-ray spectra transmitted by shielding material used in Brazil},
author = {Santos, Josilene C. and Mariano, Leandro and Tomal, Alessandra and Costa, Paulo Roberto},
year = {2013},
publisher = {IOMP-International Organization for Medical Physics},
journal   = {Medical Physics International}
}