@inproceedings{inproceedings0b380b93,
title   = {Development of reference materials to support the Brazilian agriculture},
author = {Fernandes, Elisabete A. De Nadai and Bacchi, Marcio Arruda and Tagliaferro, Fábio Sileno and Sarríes, Gabriel Adrián and Barbosa Júnior, Fernando and Nogueira, Ana Rita de Araujo},
year = {2009},
booktitle   = {Biological and Environmental Reference Material Symposium}
}