@article{articlebb313be3,
title   = {Root systems and soil microbial biomass under no-tillage system},
author = {Venzke Filho, S P and Feigl, Brigitte Josefine and Piccolo, Marisa de Cassia and Fante Junior, L and Siqueira Neto, M and Cerri, Carlos Clemente},
year = {2004},
doi = {10.1590/s0103-90162004000500011},
journal   = {Scientia Agricola}
}