@inproceedings{inproceedingsfb9c8c5e,
title   = {Are varangian or sturtian the glacial deposits on the São Francisco craton? Evidence from age determination of sedimentary rocks and minerals of the neoproterozoic Una group},
author = {Toulkeridis, Theofilos and Babinski, Marly and Buchwaldt, Robert and Brito Neves, Benjamim Bley de and Todt, Wolfgang and Santos, Roberto Ventura},
year = {1999},
publisher = {SEGEMAR},
booktitle   = {South American Symposium on Isotope Geology}
}