@inproceedings{inproceedingsca2a014f,
title   = {Anthropogeneous Dark Earth or Terra Preta do Índio: water and stacked graphene nanoflakes},
author = {Valencia, Ana Maria and Caldas, Marilia Junqueira},
year = {2018},
publisher = {SBF},
booktitle   = {Encontro de Outono}
}