1. J. Heinzelreiter and H. Mayr, ?A solid modeler for dynamic objects using the dexel representation?,Proceedings of International Conference on Engineering Design, Zürich, Switzerland, August 1991.
2. J. Heinzelreiter and H. Mayr, ?Modeling and simulation of the robotics/NC machining process using a spatial enumeration representation?,Proceedings of the 5th International Conference on Advanced Robotics, ICAR 91, Pisa, Italy, 20?22 June 1991.
3. S. Stifter, ?Simulation and verification of NC machining using symbolic computation techniques?,Proceedings IMACS 91 Congress on Computation and Applied Mathematics, Dublin, Ireland, 22?26 July 1991.
4. T. Buchbauer, ?CAM? (In German), inMegatech, vol. 2, pp. 18?23, 1993.
5. M. E. Mortenson,Geometric Modelling, J. Wiley & Sons, 1985.