@inproceedings{inproceedingsc779c752,
title   = {Copper and zinc in the organic fraction of vineyard soils as a function of pH variation},
author = {Nogueirol, R. C. and Nachtigall, G. R. and Cambri, M. A. and Alleoni, Luís Reynaldo Ferracciú},
year = {2004},
booktitle   = {International Meeting of Humic Substances Society}
}