Georgieva, S., Vassileva, R., Grozdev, V., Milenkov, G., Cempírek, J., Škoda, R., & Stefanova, E. (2024). Incompatible Elements (REE, Th, U, Nb, Ta, Ti) Mineral Association in Altered Pegmatite from the Djurkovo Pb-Zn Deposit, Central Rhodopes: Occurrence and Geochemical Properties. Proceedings of the Bulgarian Academy of Sciences, 77(10), 1474–1484. https://doi.org/10.7546/CRABS.2024.10.07