@article{article0a593dbd,
title   = {Penecontemporaneous syenitic-phonolitic and basic-ultrabasic-carbonatitic rocks at the Poços de Caldas alkaline massif, SE Brazil: geology and geochronologic evidence},
author = {Ulbrich, H. and Vlach, Silvio Roberto Farias and Ulbrich, Mabel N. C. and Kawashita, Koji},
year = {2002},
doi = {10.25249/0375-7536.20023211526},
journal   = {Revista Brasileira de Geociências}
}