@inbook{inbook9dd76b17,
title   = {Magmatic rock-types from the Asuncion-Sapucai graben: description of the occurrences and petrographical notes},
author = {Comin-Chiaramonti, P. and De Min, Angelo and Gomes, Celso B.},
year = {1996},
publisher = {EDUSP},
journal   = {Alkaline magmatism in central-eastern Paraguay : relationships with coeval magmatism in Brazil}
}