@article{article259edc7c,
title   = {Soil water retention curve determined by gamma-ray beam attenuation},
author = {Pires, Luiz Fernando and Bacchi, Osny Oliveira Santos and Reichardt, Klaus},
year = {2005},
doi = {10.1016/j.still.2004.06.003},
journal   = {Soil & Tillage Research}
}