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== Referències ==
== Referències ==
* Marie PJ, et al, An uncoupling agent containing strontium prevents bone loss by depressing bone resorption and maintaining bone formation in estrogen-deficient rats, J Bone Miner Res, 8; 5:607-15, 1993
* [https://www.usgs.gov/centers/national-minerals-information-center/strontium-statistics-and-information Ober, Joyce A.; Polyak, Désirée E. «Mineral Yearbook 2007: Strontium» (PDF). United States Geological Survey]
* [https://www.usgs.gov/centers/national-minerals-information-center/strontium-statistics-and-information Ober, Joyce A.; Polyak, Désirée E. «Mineral Yearbook 2007: Strontium» (PDF). United States Geological Survey]
* [https://www.usgs.gov/centers/national-minerals-information-center/strontium-statistics-and-information Ober, Joyce A. «Mineral Comodity Summaries 2008: Strontium» (PDF). United States Geological Survey]
* [https://www.usgs.gov/centers/national-minerals-information-center/strontium-statistics-and-information Ober, Joyce A. «Mineral Comodity Summaries 2008: Strontium» (PDF). United States Geological Survey]