* [https://archive.org/details/naturesbuildingb0000emsl/page/368/mode/2up Emsley, J. (2003). «Ruthenium». Nature's Building Blocks: An A-Z Guide to the Elements. Oxford, England, UK: Oxford University Press. pp. 368–370. ISBN 978-0-19-850340-8]
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* [https://matthey.com/products-and-markets/pgms-and-circularity/pgm-management/ Summary. Ruthenium. platinum.matthey.com, p. 9]
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== Bibliografia ==
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* George, Micheal W. «2006 Minerals Yearbook: Platinum-Group Metals». United States Geological Survey USGS.
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* Peña, Luis Ignacio De la (21 de enero de 2015). Diccionario Esencial Química. Ediciones Larousse, S.A. de C.V. (MX). ISBN 9786072107243
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* Pitchkov, V. N. (1996). "The Discovery of Ruthenium". Platinum Metals Review. 40 (4): 181–188.