Tham khảo Định_lý_Kosnita

  1. ↑ Eric W. Weisstein, Kosnita Theorem at MathWorld. Acessed on 2014-10-08.
  2. ↑ Darij Grinberg (2003), On the Kosnita Point and the Reflection Triangle. Forum Geometricorum, volume 3, pages 105–111. ISSN 1534-1178
  3. ↑ John Rigby (1997), Brief notes on some forgotten geometrical theorems. Mathematics and Informatics Quarterly, volume 7, pages 156-158 (as cited by Kimberling).
  4. ↑ Jean-Louis Ayme (), le point de Kosnitza. Online document, accessed on 2014-10-05.
  5. ↑ Clark Kimberling (2014), Encyclopedia of Triangle Centers, section X(54) = Kosnita Point. Acessed on 2014-10-08
  6. ↑ Nikolaos Dergiades (2014), Dao’s Theorem on Six Circumcenters associated with a Cyclic Hexagon. Forum Geometricorum, volume 14, pages=243–246. ISSN 1534-1178.
  7. ↑ Telv Cohl (2014), A purely synthetic proof of Dao's theorem on six circumcenters associated with a cyclic hexagon. Forum Geometricorum, volume 14, pages 261–264. ISSN 1534-1178.
  8. ↑ Ngo Quang Duong, International Journal of Computer Discovered Mathematics, Some problems around the Dao's theorem on six circumcenters associated with a cyclic hexagon configuration, volume 1, pages=25-39. ISSN 2367-7775
  9. ↑ Clark Kimberling (2014),X(3649) = KS(INTOUCH TRIANGLE)
  10. ↑ Nguyễn Minh Hà, Another Purely Synthetic Proof of Dao's Theorem on Sixcircumcenters. Journal of Advanced Research on Classical and Modern Geometries, ISSN: 2284-5569, volume 6, pages 37–44. MR....
  11. ↑ Nguyễn Tiến Dũng, A Simple proof of Dao's Theorem on Sixcircumcenters. Journal of Advanced Research on Classical and Modern Geometries, ISSN: 2284-5569, volume 6, pages 58–61. MR....
  12. ↑ The extension from a circle to a conic having center: The creative method of new theorems, International Journal of Computer Discovered Mathematics, pp.21-32.
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