@inproceedings{inproceedings5b2b5f20, title = {Geochronological constraints for the evolution of the metamorphic complexes near the Tebicuary river, southern precambrian region of Paraguay}, author = {Cordani, Umberto G. and Cubas, N and Sato, Kei and Gonzales, M. E and Báez Presser, Jaime Leonardo}, year = {2001}, publisher = {Sociedad Geológica de Chile}, booktitle = {South American Symposium on Isotope Geology} }