1. F. Verheyen. Expandable polyhedral structures based on dipolygonoids, in: Proceedings of the Third Conference on Space Structures, London,
2. C.Hoberman. Reversibly expandable double-curved truss structure. US Patent 4,942,700, 1990.
3. K. Wohlhart. New Overconstrained Spheroidal Linkages, in: Proceedings of the Ninth World Congress on the Theory of Mach. and Mech., 1, pp. 149–154, 1995.
4. Kinematics and Dynamics of the Fulleroid;Wohlhart,1997
5. New regular polyhedral linkages;Wohlhart;Proc. SYROM Bukarest, Rumania,2001