1. Tserpes. Gartner hype cycle [Internet]. Wikimedia foundation. 2005; [cited 2023 Aug 22]. Available from: https://en.m.wikipedia.org/wiki/Gartner_hype_cycle
2. Pollard D. 3D printing - where did it all start? - prescouter - custom intelligence from a global network of experts [Internet]. 2019; [cited 2023 Aug 23]. Available from: https://www.prescouter.com/2017/03/3d-printing-start/
3. ISO/ASTM 52900:2021(EN), additive manufacturing? General principles [Internet]. 2021; [cited 2023 Aug 20]. Available from: https://www.iso.org/obp/ui/#!iso:std:74514:en
4. Rovick JS. Direct, automated fabrication of sockets for artificial limbs. Northwestern University; 1993.
5. The official history of the RepRap project [Internet]. 2021; [cited 2023 Sept 12]. Available from: https://all3dp.com/history-of-the-reprap-project/