Przegląd Geologiczny > 2021 > Vol. 69, nr 4 > 234--243
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journal ISSN : | 0033-2151 |
DOI | 10.7306/2021.13 |
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Bibliography
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2. BGS, 2011 - Mineral profil, Niobum-Tantalum. British Geological Survey, London.
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3. BGS, 2015 - Risk List 2015. An Update to the Risk Index for Elements or Element Groups that Are of Economic Value. British Geol. Survey, London.