1. Avital M. The generative bedrock of open design. In B. van Abel, R. Klaassen, L. Evers, & P. Troxler (Eds.), Open design now: why design cannot remain exclusive. Amsterdam: BIS Publishers. 2011; 48–58.
2. Thomson M, Koskinen T. Design for Growth & Prosperity - Report and Recommendations of the European Design Leadership Board. DG Enterprise and Industry of the European Commission. 2012.
3. OPEN! Methods and tools for community-based product development. Observatory of open source hardware. 2019. Retrieved 19th March 2019 from https://opensourcedesign.cc/observatory/products#open_source_hardware_directory
4. SourceForge. rattleCAD. 2019. Retrieved 20th March 2019 https://sourceforge.net/projects/rattlecad/
5. SourceForge. BRL CAD. 2019. Retrieved 20th March 2019 from https://sourceforge.net/projects/brlcad/