JournalsemVol. 56, No. 3pp. 122–129

On the principal centers of a triangle

  • Michael S. Longuet-Higgins

    University of California, San Diego, La Jolla, USA
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Michael S. Longuet-Higgins, On the principal centers of a triangle. Elem. Math. 56 (2001), no. 3, pp. 122–129

DOI 10.1007/PL00000545