Mohab Safey El Din, Éric Schost. Polar varieties and computation of one point in each connected component of a smooth real algebraic set. In J. Rafael Sendra, editor, Symbolic and Algebraic Computation, International Symposium ISSAC 2003, Drexel University, Philadelphia, Pennsylvania, USA, August 3-6, 2003, Proceedings. pages 224-231, ACM, 2003. [doi]
Abstract is missing.