@misc{miscf413f0d5, 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 Nutman, Allen and Sato, Kei and Gonzales, M. E. and Presser, J. L. B.}, year = {2001}, publisher = {Sociedad Geológica de Chile}, booktitle = {South American Symposium on Isotope Geology} }