• The hypocycloïdal drive in Telescope Making #46 p46-51 by Alb. v. Haasteren and C.Simons

• Der hypozykloid-Trieb in Orion April 1996 p57-59 by H.G. Ziegler

• The harmonic drive is very similar to the hypocycloïdal drive, in fact it's using the same principle. Explanation of this principle can be found at harmonic drive

Anyone that can help me getting more information  mailto:jvb@digilife.be

Works mentioned and followed by (°) are not yet in my possession and a copy of them is gratefully accepted !