Andradas Heranz, CarlosRuiz Sancho, Jesús María2023-06-202023-06-2019920075-8434htt://dx.doi.org 10.1007/BFb0084613https://hdl.handle.net/20.500.14352/57198Real Algebraic Geomety, Proceedings of the Conference held in Rennes, France, June 24-28, 1991journal articlehttp://www.springerlink.com/content/95h3174706u6670l/http://www.springerlink.commetadata only access512.7Geometria algebraica1201.01 Geometría Algebraica