Bryce, Geore, ''A Short History of the Canadian People'' [online]. Archive.org [cit. 2009-11-03]. Dostupné online.
doi.org
dx.doi.org
Serruya MD, Kahana MJ. Techniques and devices to restore cognition. Behav Brain Res. 2008, roč. 192, čís. 2, s. 149. DOI10.1016/j.bbr.2008.04.007. PMID18539345.
karlofgermany.com
The Iron Hand of the Goetz von Berlichingen [online]. Karlofgermany.com [cit. 2009-11-03]. Dostupné online.
madehow.com
How artificial limb is made - Background, Raw materials, The manufacturing process of artificial limb, Physical therapy, Quality control [online]. Madehow.com, 1988-04-04 [cit. 2010-10-03]. Dostupné online.
nih.gov
ncbi.nlm.nih.gov
Serruya MD, Kahana MJ. Techniques and devices to restore cognition. Behav Brain Res. 2008, roč. 192, čís. 2, s. 149. DOI10.1016/j.bbr.2008.04.007. PMID18539345.
web.archive.org
Bronze single crown-like prosthetic restorations of teeth from the Late Roman period = Des restaurations par prothèses identiques à des couronnes en simple bronze de dents pendant la fin de la période romaine [online]. Cat.inist.fr [cit. 2009-11-03]. Dostupné v archivu pořízeném dne 2011-07-21.