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    Warm, Hartmut
      The golden section in a planar quasi twelve-point star, 16 (2016) 95--98.
    Watanabe, Masayuki
      (with H. Okumura) The Archimedean circles of Schoch and Woo, 4 (2004) 27--34.
      (with H. Okumura) The twin circles of Archimedes in a skewed arbelos, 4 (2004) 229--251.
      (with H. Okumura) The arbelos in $n$-aliquot parts, 5 (2005) 37--45.
      (with H. Okumura) A generalization of Power's Archimedean circles, 6 (2006) 103--105.
      (with H. Okumura) Characterizations of an infinite set of Archimedean circles, 7 (2007) 121--123.
      (with H. Okumura) Remarks on Woo's Archimedean circles, 7 (2007) 125--128.
    Weise, Gotthard
      Iterates of Brocardian points and lines, 10 (2010) 109--118.
      Generalization and extension of the Wallace theorem, 12 (2012) 1--11.
      On some triads of homothetic triangles, 14 (2014) 203--215.
      Pairs of cocentroidal inscribed and circumscribed triangles, 15 (2015) 185--190.
      Cevian projections of inscribed triangles and generalized Wallace lines, 16 (2016) 241--248.
    Wimmer, Harald K
      (with N. Ito) A sangaku-type problem with regular polygons, triangles, and congruent incircles, 13 (2013) 185--190.
    Wipper, Joachim
      (with D. Vartziotis) On the construction of regular polygons and generalized Napoleon vertices, 9 (2009) 213--223.
    Wolk, Barry
      (with A. P. Hatzipolakis, F. M. van Lamoen, and P. Yiu) Concurrency of four Euler lines, 1 (2001) 59--68.
    Woo, Peter
      Simple constructions of the incircle of an arbelos, 1 (2001) 133--136.
      (with A. Myakishev) On the circumcenters of cevasix configurations, 3 (2003) 57--63.
    Wu, Chai Wah
      Counting the number of isosceles triangles in rectangular regular grids, 17 (2017) 31--39.
    Wu, Yu-Dong
      (with Z. H. Zhang) The edge-tangent sphere of a circumscriptible tetrahedron, 7 (2007) 19--24.
      A new proof of a weighted Erdos-Mordell type inequality, 8 (2008) 163--166.