@article{articlec4fe652a,
title   = {Permeability - impermeability: canopy trees as biodiversity filters},
author = {Gandolfi, Sergius and Joly, Carlos Alfredo and Rodrigues, Ricardo Ribeiro},
year = {2007},
doi = {10.1590/S0103-90162007000400015},
journal   = {Scientia Agricola}
}