@inproceedings{inproceedings3e92e276,
title   = {Argon-Argon ages in micas from metapelites of the Ovar-Espinho area (NW Portugal): datation of metamorphism related to the variscan D3},
author = {Acciaioli, Maria Helena and Santos, José Francisco dos and Munhá, Jose Manuel and Cordani, Umberto G. and Onoe, Artur Takashi},
year = {2004},
publisher = {IUGS},
booktitle   = {International Geological Congress}
}