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Romania | |
| Paulina Hîrtopanu, Robert J. Fairhurst, Gyula Jakab, Sorin Silviu Udubaşa (2017): Monazite-(Ce) and its associations from the Ditrau alkaline intrusive massif, East Carpathians, Romania. Romanian Journal of Mineral Deposits 90, 27-40. |
| Hirtopanu, P., Bermanec, V., Udubasa, G., & Melgarejo, J. C. (2000). Monazite and Allanite from the Ditrau Alkaline Massif, East Carpathians, Romania. Anuarul Institutului Geologic al Romaniei, 72, 41. |
| Hirtopanu, P. , Jakab, G. , Andersen, C. J., & Fairhurst, J. R. (2013). Thorite, thorogummite and xenotime-(Y) occurrence in Ditrau alkaline intrusive massif, East Carpathians, Romania. Proceedings of the Romanian Academy, Series B: Chemistry, Life Sciences and Geoscience, 15(2), 111-132. |