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    Dorin Andrica, Solved and unsolved problems. Eur. Math. Soc. Mag. 140 (2026), pp. 51–61

    DOI 10.4171/MAG/317
    This open access article is published by EMS Press under a CC BY 4.0 license, with the exception of logos and branding of the European Mathematical Society and EMS Press, and where otherwise noted.
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