@inproceedings{inproceedings0111de4f,
title   = {Caracterizacao mineralogica / tecnologica das apatitas da barra do itapirapua: sp / pr},
author = {Lenharo, Sara Lais Rahal and Kahn, Henrique and Born, Helmut},
year = {1994},
publisher = {Sbg},
booktitle   = {Congresso Brasileiro de Geologia}
}