@inproceedings{inproceedingse917f631,
title   = {Ultrabasic potassic rocks of presidente olegario, serra da mata da corda, minas gerais, brazil},
author = {Ulbrich, Mabel N. C. and Leonardos, Othon Henry},
year = {1991},
publisher = {Cprm},
booktitle   = {International Kimberlite Conference}
}