| Reference | {Deposit:: KUZVART, M., 1984: INDUSTRIAL MINERALS AND ROCKS.- DEVELOPM. IN ECON. GEOL.NO.18, ELSEVIER SCIENCE PUBL. B .V. AMSTERDAM}{Deposit:: STUTZER, O. 1911: DIE WICHTIGSTEN LAGERSTAETTEN DER ,NICHT-ERZE,.VOL.I (GRAPHIT, DIAMANT, SCHWEFEL, PHOSPHAT) - BORNTRAEGER, BERLIN, 1911}{Deposit:: FORMANEK, J., KRIZEK, J. AND STEPAN, K., 1963: GRAPHITE, - MINING, BENEFICIATION AND USAGE IN INDUSTRY (CZECH) PRAHA 1963}{Deposit:: BRITISH GEOLOGICAL SURVEY: WORLD MINERAL STATISTICS} |