@article{GP05,
  title = "Polynomial-time computing over quadratic maps {I}. Sampling in real algebraic sets",
  author = "Grigoriev, D. and Pasechnik, D. V.",
  year = "2005",
  journal = "Computational Complexity",
  note = "e-print cs.SC/0403008 at arXiv.org",
  pages = "20--52",
  volume = "14",
}