JournalsemVol. 72, No. 2pp. 80–82

On the proof of Ptolemy’s Lemma

  • Đura Paunić

    University of Novi Sad, Serbia

  • Gerhard Wanner

    Université de Genève, Switzerland
On the proof of Ptolemy’s Lemma cover
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Đura Paunić, Gerhard Wanner, On the proof of Ptolemy’s Lemma. Elem. Math. 72 (2017), no. 2, pp. 80–82

DOI 10.4171/EM/328