@inproceedings{inproceedings05c2855a,
title   = {Barium and titanium-rich biotites and phlogopites from Fernando de Noronha archipelago, Brazil},
author = {Ulbrich, Mabel N. C. and Lopes, R. P.},
year = {2000},
publisher = {CPRM},
booktitle   = {International Geological Congress}
}