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Partially supported by CAICYT, n. PB860062
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Andradas, C., Bröcker, L. & Ruiz, J.M. Minimal generation of basic open semianalytic sets. Invent Math 92, 409–430 (1988). https://doi.org/10.1007/BF01404461
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DOI: https://doi.org/10.1007/BF01404461