1. Reticular Chemistry Structure Resource
http://rcsr.anu.edu.au/
2. Knots and Links;Rolfsen,2003
3. A Topological Hierarchy of Molecular Chirality and other Tidbits in Topological Stereochemistry;Walba,1991
4. Ideal geometry of periodic entanglements
5. Chemical Topology;Frisch;Org. Biol. Chem.,1961