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This article was written by Ch. Ferrier while preparing his doctoral thesis at the Laboratory of Approximation and Optimization, Univeristy of Sabatier, Toulouse, France.
Published in Kibernetika i Sistemnyi Analiz, No. 5, pp. 76–91, September–October, 1998.
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Ferrier, C. Hilbert’s 17th problem and best dual bounds in quadratic minimization. Cybern Syst Anal 34, 696–709 (1998). https://doi.org/10.1007/BF02667043
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DOI: https://doi.org/10.1007/BF02667043