1. Aiello E, Bartolini C, Boccaletti M, Gocev P, Karagjuleva J, Kostadinov V, Manetti P (1977) Sedimentary features of the Srednogorie zone (Bulgaria): an Upper Cretaceous intra-arc basin. Sed Geol 19:39–68
2. Amov BG, Baldjieva TT, Arnaoudov VS, Pavlova MD (1973) Isotopic composition of lead in potassium feldspars and the geological age of pegmatites in southern Bulgaria. Comptes rendus de l'Académie bulgare des Sciences 26:1513–1516
3. Amov B, Bogdanov B, Baldjieva T (1974) Lead isotope composition and some features concerning the genesis and the age of the ore deposits in south Bulgaria. In: 4th IAGOD Symposium, Varna, Bulgaria, pp 13-25 (in Russian)
4. Amov BG, Arnaudov VS, Pavlova MA (1982) Lead isotope data and age of granitoids and metamorphic rocks from Sredna Gora and Pirin. Comptes rendus de l'Académie bulgare des Sciences 35:1535–1537
5. Arribas Jr. A (1995) Characteristics of high-sulfidation epithermal deposits, and their relation to magmatic fluid. In: Thompson JFH (ed) Magmas, Fluids, and Ore Deposits. Mineralogical Association of Canada, Victoria, British Columbia, pp 419–454