@inproceedings{inproceedings20cc9284,
title   = {Determination of rare earth elements in geological samples by isotope dilution mass spectrometry},
author = {Moraes, Noemia M. P. de and Iyer, Sundaram Sankara Subba and Sato, Kei},
year = {1989},
publisher = {Sociedade Brasileira de Geoquimica/Cprm/Dnpm},
booktitle   = {International Geochemical Exploration Symposium}
}