@article{article4dffb6d9,
title   = {Petrologia del macizo alcalino de Acahay Paraguay Oriental},
author = {Gomes, Celso B. and Comin-Chiaramonti, P. and De Min, Angelo and Melfi, Adolpho José and Bellieni, Giuliano and Ernesto, Márcia and Castillo, A. M. and Velazquez, Juan Carlos and Piccirillo, Enzo Michele},
year = {1991},
journal   = {Revista Geologica}
}