[1] Critical Metals in Strategic Energy Technologies: Assessing Rare Metals as Supply-Chain Bottlenecks in Low-Carbon Energy Technologies, R.L.Moss, E.Tzimas, H.Kara, P.Willis e J.Kooroshy, Commissione europea, Centro comune di ricerca, Istituto per l'energia e i trasporti, 2011.
[1] Critical Metals in Strategic Energy Technologies: Assessing Rare Metals as Supply-Chain Bottlenecks in Low-Carbon Energy Technologies, R. L. Moss, E. Tzimas, H. Kara, P. Willis et J. Kooroshy, Commission européenne, Centre commun de recherche, Institut de l’énergie et du transport, 2011.