Lutov, George, Sylvina Georgieva, and Rossitsa Vassileva. 2024. “Arsenopyrite from the Low-Sulphidation Sedefche Au-Ag Deposit, Eastern Rhodopes: Mineral Association and Gold Potential”. Proceedings of the Bulgarian Academy of Sciences 77 (9). Sofia, Bulgaria:1302–1311. https://doi.org/10.7546/CRABS.2024.09.05.