Bernard Gibert,
Antiorthocorrespondents of circumconics,
Forum Geometricorum,
3 (2003) 231--249.
Abstract: This note is a complement
to our previous paper Orthocorrespondence and Pivotal Cubics.
We study how circumconics are transformed under antiorthocorrespondence.
This leads us to consider a pencil of pivotal circular cubics which contains
in particular the Neuberg cubic of the orthic triangle.
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