"Aluminium – Silicon Alloys : Strontium Master Alloys for Fast Al-Si Alloy Modification from Metallurg Aluminium", publisher = AZo Journal of Materials Online [4]Arhivirana inačica izvorne stranice od 5. kolovoza 2008. (Wayback Machine) 2008.
bgs.ac.uk
British Geological Survey: "World mineral production 2004–08", publisher=British Geological Survey, 2009., [3]
books.google.com
[2] "Metalle in der Elektrochemie", Fachgruppe Geschichte Der Chemie, Gesellschaft Deutscher Chemiker, 2005.
"Aluminium – Silicon Alloys : Strontium Master Alloys for Fast Al-Si Alloy Modification from Metallurg Aluminium", publisher = AZo Journal of Materials Online [4]Arhivirana inačica izvorne stranice od 5. kolovoza 2008. (Wayback Machine) 2008.