| Larson, William F. (2009) What's new in minerals - Sainte Marie-aux-Mines 2008. The Mineralogical Record, 40 (1) 65-70 Berylium mineralisation in Pb-Zn ore deposit Krushev dol, Madan district, Bulgaria Zh. Janakieva, Ch. Nachev, Sh. Sirakov . “Geosciences 2008”, Proceedings. |
Krushev dol Mine, Madan Municipality, Smolyan Province, Bulgaria