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Llínea 6: + + − * [http://www.iupac.org/publications/books/rbook/Red_Book_2005.pdf IUPAC Recommendations, Nomenclature of Inorganic Chemistry] − * [https://www.smm.co.jp/en/news/release/uploaded_files/20160428en.pdf «Establishment of Scandium Recovery Operations»]
→Referències
== Referències ==
== Referències ==
* [https://www.smm.co.jp/en/news/release/uploaded_files/20160428en.pdf «Establishment of Scandium Recovery Operations»]
* [http://www.iupac.org/publications/books/rbook/Red_Book_2005.pdf IUPAC Recommendations, Nomenclature of Inorganic Chemistry]
* [https://pubs.usgs.gov/periodicals/mcs2020/mcs2020-scandium.pdf «Mineral Commodity Summaries 2020». US Geological Survey Mineral Commodities Summary 2020. US Geological Survey]
* [https://pubs.usgs.gov/periodicals/mcs2020/mcs2020-scandium.pdf «Mineral Commodity Summaries 2020». US Geological Survey Mineral Commodities Summary 2020. US Geological Survey]
* [https://www.usgs.gov/centers/national-minerals-information-center/rare-earths-statistics-and-information «Mineral Commodity Summaries 2015: Scandium». United States Geological Survey]
* [https://www.usgs.gov/centers/national-minerals-information-center/rare-earths-statistics-and-information «Mineral Commodity Summaries 2015: Scandium». United States Geological Survey]
* [https://www.usgs.gov/centers/national-minerals-information-center/rare-earths-statistics-and-information Scandium]
* [https://www.usgs.gov/centers/national-minerals-information-center/rare-earths-statistics-and-information Scandium]