@article{articledfd712c3,
title   = {Gamma-ray computed tomography as a tool to evaluate porosity changes along depth for surface crusted soils},
author = {Pires, Luiz Fernando and Bacchi, Osny Oliveira Santos and Reichardt, Klaus and Dias, Nivea Maria Piccolomini},
year = {2007},
journal   = {Nukleonika}
}