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Dedicated to Ronald A. DeVore on his 60th birthday
This research was supported in part by the National Science Fundation, DMS-9801435, and by the Hungarian National Science Foundation for Research, T/022983.
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Totik, V. Polynomial inverse images and polynomial inequalities. Acta Math. 187, 139–160 (2001). https://doi.org/10.1007/BF02392833
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DOI: https://doi.org/10.1007/BF02392833