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Brazil | |
| Vilalva, F.C.J., and Vlach, S.R.F. (2010) Major- and trace-element composition of REE-rich turkestanite from peralkaline granites of the Morro Redondo Complex, Graciosa Province, south Brazil. Mineralogical Magazine: 74(4): 645-658. |
| Rosa, P. A. D. S., & Ruberti, E. (2018). Nepheline syenites to syenites and granitic rocks of the Itatiaia Alkaline Massif, Southeastern Brazil: new geological insights into a migratory ring Complex. Brazilian Journal of Geology, 48, 347-372. |
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Paraguay | |
| Comin-Chiaramonti, P., Renzulli, A., Ridolfi, F., Enrich, G. E., Gomes, C. B., De Min, A., ... & Ruberti, E. (2016). Late-stage magmatic to deuteric/metasomatic accessory minerals from the Cerro Boggiani agpaitic complex (Alto Paraguay Alkaline Province). Journal of South American Earth Sciences, 71, 248-261. |