| Reference | {Deposit:: METALLGESELLSCHAFT AG, DEVELOPMENT TRENDS OF THE NON-}{Deposit:: FERROUS METALS INDUSTRY IN EASTERN EUROPE, DECEMBER 1991.}{Deposit:: ROHSTOFFWIRTSSCHAFTLICHE LANDERBERICHTE, BUNDESANSTALT}{Deposit:: FUR GEOWISSENSCHAFTEN UND ROHSTOFFE, HANNOVER,}{Deposit:: DECEMBER 1977.}{Deposit:: ATLAS OF EASTERN EUROPE, CENTRAL INTELLIGENCE AGENCY,}{Deposit:: AUGUST 1990.}{Deposit:: THE TIMES ATLAS OF THE WORLD, TIMES BOOKS, 1983.}{Deposit:: COMMODITIES RESEARCH UNIT LIMITED, THE BASE METAL}{Deposit:: INDUSTRIES OF EASTERN EUROPE, NOV. 1990.} |