@inproceedings{inproceedings908f92e7,
title   = {Proposal for consensus 87 Sr/86 sr values for reference samples NBS-987 and Sr, (E & A)},
author = {Kawashita, Koji and Pinto, M. S and Soares, E and Marques, F},
year = {1997},
publisher = {FAPESP/CNPq/CPRM},
booktitle   = {South American Symposium on Isotope Geology}
}