1. Regular Complex Polytopes;Coxeter,1974
2. Some remarks concerning close-packing of equal spheres;Boerdijk;Philips Res. Rep.,1952
3. Tetrahelix Data
http://www.rwgrayprojects.com/rbfnotes/helix/helix01.html
4. Cabinet of curiosities: The interesting geometry of the angle β = arccos((3ϕ − 1)/4);Fang;arXiv,2013
5. Synergetics: Explorations in the Geometry of Thinking;Fuller,1975