1. E.F. Fichter, Algebraic loci traced by certain mechanisms: A determination of loci of points, planes or lines with one or two degrees of freedom. Thèse de doctorat, Monash University, Clayton, Victoria, Australia, 1975
2. L. Tancredi, L., De la simplification et la résolution du modèle géométrique direct des robots parallèles. Thèse de doctorat, École Nationale Supérieure des Mines de Paris, Sophia Antipolis, France, 1995
3. M. Raghavan, The Stewart platform of general geometry has 40 configurations, in: ASME Design and Automation Conference, Vol. 32-2. Chicago, IL, USA, 1991, pp. 297–402
4. F. Ronga, T. Vust, Stewart platform of general geometry has 40 configurations, in International Conference on Real Analytic and Algebraic Geometry, Berlin, 1995. (W. de Gruyter Présentélors de la conférence en 1992, Trento, Italie)
5. D. Lazard, Generalized Stewart Platform: How to compute with rigid motions? In: IMACS. Lille, France, 1993, pp. 85–88